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Compounds
and Molecules
Monday 12/2/13
• Agenda
– 1. Bellringer:
• Chapter 5 & 8 Study Questions
– 2. AVID Interactive Notebook
• Pages 44-46
– 3. Homework (Due: Monday 12/9/13)
• Read Textbook: Pages 184-189
• Answer: Section Assessment Page 189
– 4. Note/PowerPoint Presentation
• Molecules and Compounds
– 5. Class Work
• Building Molecular Models
• Atoms Molecules Elements Compound Thinking Map
– 6. Disney Video
• Bill Nye: Atoms
Copyright Richards 2009
Interactive Science
Notebooks
Copyright Richards 2009
Class Work
Assignment:
1. Cut out the
Compounds Carbon
Crystals Molecules
Sign.
2. Glue it to Page 44
Page 44
Copyright Richards 2009
Class Work
Assignment:
1. Cut out the Atoms
Molecules Elements
and Compounds
Thinking Map.
2. Glue it to Page 45.
Page 45
Copyright Richards 2009
Class Work
Assignment:
1. Cut out the Building
Molecular Models
Lab.
2. Glue it to Page 46
Page 46
Copyright Richards 2009
Homework: Monday 12/2/13
Homework
Due: Monday 12/9/13
Read Textbook: Pages 184-189
Answer: Section Assessment Page 189
Standard 3: Structure of Matter:
Compounds
Standard 3b: Students know that
compounds are formed by combining
two or more different elements and that
compounds have properties that are
different from their constituent
elements.
California Science Standard
Content Objectives
After this lesson I should be able to:
1. Define a compound.
2. Define a molecule
3. Build models of molecules using
atoms.
Language Objectives
After this lesson I should be able to:
1. Read and listen to a presentation.
2. Write information on a thinking map and graphic
organizer.
3. Write Cornell notes.
4. Participate in whole class and small group discussion.
5. Read and write definitions.
6. Read and answer questions.
7. Listen to and takes notes from a video presentation.
Question 1:
What are
asteroids?
Key Question
What are compounds?
How are compounds formed?
How are compounds and
elements different?
Question 1:
What are
asteroids?
Bill Nye Atoms
(Starting with “A is for Atom”)
Disney Videos
Notes
Compounds
Cornell NotesInteractive Notebook Page 44
Question 1:
What are
asteroids?
Question 1:
What are the main
types of matter?
Copyright Richards 2009
What are the main types of matter?
elements
sugar
compounds
gold
copper
oxygen
water
salt
I. There are 2 main types of matter:
- elements
- compounds
Cornell NotesInteractive Notebook Page 44
Think-Group-Share
What are the 2 main types of
matter?
Think-Group-Share
What are the 2 main types of
matter?
 The 2 main types of matter
are elements and compounds.
Copyright Richards 2009
What are the main types of matter?
elements
sugar
compounds
gold
copper
oxygen
water
salt
I. There are 2 main types of matter:
- elements
- compounds
Question 1:
What are
asteroids?
Question 2:
What are elements?
Copyright Richards 2009
What are elements?
II. Elements are the building blocks of
matter.
oxygen
copper
gold
Copyright Richards 2009
What are elements?
copper
A. All of the matter in the universe is
made of 92 elements or combinations
of these elements.
silver
carbon
oxygen sodium
gold
chlorine
Class Work
Atoms Molecules
Elements and
Compounds
Thinking Map
Cornell NotesInteractive Notebook Page 44
Atoms Molecules Compounds
Elements Graphic Organizer
Page 44
Atoms Molecules Compounds
Elements Graphic Organizer
Page 44
H and O
What do H and O
stand for?
Atoms Molecules Compounds
Elements Graphic Organizer
Page 44
Atoms Molecules Compounds
Elements Graphic Organizer
Page 44
1. All matter is made
of 92 naturally
occurring elements.
Think-Group-Share
What is all matter made of?
Think-Group-Share
What is all matter made of?
 All matter is made of the 92
naturally occurring elements.
Copyright Richards 2009
What are elements?
copper
A. All of the matter in the universe is
made of 92 elements or combinations
of these elements.
silver
carbon
oxygen sodium
gold
chlorine
Copyright Richards 2009
What are elements?
copper
A. The naturally occurring elements can
NOT be made or destroyed.
silver
carbon
oxygen sodium
gold
chlorine
Atoms Molecules Compounds
Elements Graphic Organizer
Page 44
1. All matter is made
of 92 naturally
occurring elements.
Atoms Molecules Compounds
Elements Graphic Organizer
Page 44
1. All matter is made
of 92 naturally
occurring elements.
2. Elements cannot
be made or .
destroyed. .
Think-Group-Share
Can elements be made or
destroyed?
 Yes
 No
Think-Group-Share
Can elements be made or
destroyed?
 Yes
 No
Copyright Richards 2009
What are elements?
copper
A. The naturally occurring elements can
NOT be made or destroyed.
silver
carbon
oxygen sodium
gold
chlorine
Question 1:
What are
asteroids?
Question 3:
What are the smallest
particles of an
element?
What are the smallest particles of an element?
III. Elements are made of atoms .
The
Element
Hydrogen
1 Hydrogen
Atom
Class Work
Atoms Molecules
Elements and
Compounds
Thinking Map
Cornell NotesInteractive Notebook Page 44
Atoms Molecules Compounds
Elements Graphic Organizer
Page 44
Elements are made of Atoms.
Atoms Molecules Compounds
Elements Graphic Organizer
Page 44
Atoms
Atoms Molecules Compounds
Elements Graphic Organizer
Page 44
Elements are made of atoms.
Atoms
Think-Group-Share
What are elements made of?
Think-Group-Share
What are elements made of?
 Elements are made of atoms.
What are the smallest particles of an element?
III. Elements are made of atoms .
The
Element
Hydrogen
1 Hydrogen
Atom
What are the smallest particles of an element?
A. Atoms are the smallest particles of
an element.
Carbon
Pencil lead
Carbon AtomsPencils
What are the smallest particles of an element?
A. Atoms are the smallest particles of
an element.
Nickel Atoms
Nickel
Coin
Nickel Metal Foil
Class Work
Atoms Molecules
Elements and
Compounds
Thinking Map
Cornell NotesInteractive Notebook Page 44
Atoms Molecules Compounds
Elements Graphic Organizer
Page 44
Elements are made of atoms.
Atoms
Atoms Molecules Compounds
Elements Graphic Organizer
Page 44
Elements are made of atoms.
Atoms are the smallest particle
of an element.
Atoms
Think-Group-Share
What is the smallest particle of
an element?
Think-Group-Share
What is the smallest particle of
an element?
 The smallest particle of an
element is an atom of that
element.
What are the smallest particles of an element?
A. Atoms are the smallest particles of
an element.
Nickel Atoms
Nickel
Coin
Nickel Metal Foil
Question 1:
What are
asteroids?
Question 4:
What are
molecules?
What are the smallest particles of an element?
IV. Atoms connect together with bonds
to form molecules.
1 Hydrogen
Molecule
2 Hydrogen
Atoms
Question 1:
What are
asteroids?
Building Molecular
Models
Class Work
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this molecule:
1 hydrogen 1 hydrogen 1 hydrogen
atom atom molecule
H H
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this molecule:
1 hydrogen 1 hydrogen 1 hydrogen
atom atom molecule
H H HH
bond
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction:
1 oxygen 1 oxygen 1 oxygen
atom atom molecule
O O
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction:
1 oxygen 1 oxygen 1 oxygen
atom atom molecule
double
bond
O O OO
Class Work
Atoms Molecules
Elements and
Compounds
Thinking Map
Cornell NotesInteractive Notebook Page 44
Atoms Molecules Compounds
Elements Graphic Organizer
Page 44
Atoms combine to form Molecules
Atoms Molecules Compounds
Elements Graphic Organizer
Page 44
H2O
Atoms Molecules Compounds
Elements Graphic Organizer
Page 34
Molecules
Atoms Molecules Compounds
Elements Graphic Organizer
Page 44
Atoms bond to form molecules.
Molecules
Think-Group-Share
How are molecules formed?
Think-Group-Share
How are molecules formed?
 Atoms bond to form the
molecules.
What are the smallest particles of an element?
IV. Atoms connect together with bonds
to make molecules.
1 Hydrogen
Molecule
2 Hydrogen
Atoms
Compounds Lecture
Compounds
Tuesday 12/3/13
• Agenda
– 1. Bellringer:
• Chapter 8 Study Guide
– 2. AVID Interactive Notebook
• Pages 44-46
– 3. Homework (Due: Monday 12/9/13)
• Read Textbook: Pages 184-189
• Answer: Section Assessment Page 189
– 4. Note/PowerPoint Presentation
• Molecules and Compounds
– 5. Class Work
• Building Molecular Models Lab
• Atoms Molecules Elements Compound Thinking Map
– 6. Discovery Streaming Video
• “Matter and Its Properties: What Makes Up Matter?”
Class Work
Chapter 5 & 8
Study Questions
Class Work
Chapter 5
Study
Questions
Class Work
Chapter 8
Study
Questions
Copyright Richards 2009
Homework: Monday 12/2/13
Homework
Due: Monday 12/9/13
Read Textbook: Pages 184-189
Answer: Section Assessment Page 189
Standard 3: Structure of Matter:
Compounds
Standard 3b: Students know that
compounds are formed by combining
two or more different elements and that
compounds have properties that are
different from their constituent
elements.
California Science Standard
Standard 3: Compounds:
Standard 3F: Students know
how to use the periodic table to
identify elements in simple
compounds.
California Science Standard
Content Objectives
After this lesson I should be able to:
1. Define a compound.
2. Identify elements in a compound using the
chemical formula and the periodic table.
3. Explain how compounds and elements differ.
4. Build models of molecules using atoms.
Language Objectives
After this lesson I should be able to:
1. Read and listen to a presentation.
2. Write information on a thinking map and graphic
organizer.
3. Write Cornell notes.
4. Participate in whole class and small group discussion.
5. Read and write definitions.
6. Read and answer questions.
7. Listen to and takes notes from a video presentation.
Question 1:
What are
asteroids?
Key Question
What are compounds?
How are compounds formed?
How are compounds and
elements different?
Question 1:
What are
asteroids?
“Matter and Its
Properties: What
Makes Up Matter?”
(5:35 Combining
Elements) (0-10:53)
Discovery Streaming Video
Notes
Compounds
Cornell NotesInteractive Notebook Page 45
Question 1:
What are
asteroids?
Question 5:
What are
compounds?
What are compounds?
V. A compound is formed from the
chemical reaction of 2 or more elements
sodium
+
chlorine
=
salt
element element compound
Class Work
Atoms Molecules
Elements and
Compounds
Thinking Map
Cornell NotesInteractive Notebook Page 45
Atoms Molecules Compounds
Elements Graphic Organizer
Page 45
H and O
react
Atoms Molecules Compounds
Elements Graphic Organizer
Page 45
H and O H2O
Elements react to form Compounds.
react
Atoms Molecules Compounds
Elements Graphic Organizer
Page 45
H2O
react
Atoms Molecules Compounds
Elements Graphic Organizer
Page 45
Atoms Molecules Compounds
Elements Graphic Organizer
Page 45
Compounds are
made from the
chemical
reaction of 2 or
more elements.
Think-Group-Share
How are compounds made?
Think-Group-Share
How are compounds made?
 Compounds are made from
the chemical reaction of 2 or
more elements.
What are compounds?
V. A compound is made from the chemical
reaction of 2 or more elements
sodium
+
chlorine
=
salt
element element compound
salt
What are compounds?
A. Atoms of each element form bonds
to make molecules of the compound.
sodium
+
chlorine
= salt
element compound
Na+ Cl-
+
Question 1:
What are
asteroids?
Building Molecular
Models
Class Work
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction:
2 hydrogen 1 oxygen 1 water
atoms atom molecule
O
H
H
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction:
2 hydrogen 1 oxygen 1 water
atoms atom molecule
O
H
H
HH
O
bonds
Class Work
Atoms Molecules
Elements and
Compounds
Thinking Map
Cornell NotesInteractive Notebook Page 45
Atoms Molecules Compounds
Elements Graphic Organizer
Page 45
H2O
Atoms Molecules Compounds
Elements Graphic Organizer
Page 45
Atoms bond to form molecules.
Atoms of elements bond to
form molecules of a compound
Molecules
Think-Group-Share
How are molecules of a
compound formed?
Think-Group-Share
How are molecules of a
compound formed?
 Atoms of each element bond
to form the molecules.
salt
What are compounds?
A. Atoms of each element form bonds
to make molecules of the compound.
sodium
+
chlorine
= salt
element compound
Na+ Cl-
+
Notes
Compounds
Question 1:
What are
asteroids?
Building Molecular
Models
Class Work
Copyright Richards 2009
Class Work
Page 46
Class Work Page 46
Hands on Activity
Making Molecular Models of Compounds:
Use this Legend:
white = hydrogen H
sodium Na
red = oxygen O
black = carbon C
green = chlorine Cl
= fluorine F
orange = nitrogen N
yellow = sulfur S
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Write the reaction below.
2. Using the legend, make a model of this reaction:
Cl HCl
1 hydrogen + 1 chlorine 1 hydrochloric acid
atom atom molecule
+ =
H
Hands on Activity
Making Molecular Models of Compounds:
Use this Legend:
white = hydrogen H
sodium Na
red = oxygen O
black = carbon C
green = chlorine Cl
= fluorine F
orange = nitrogen N
yellow = sulfur S
Class Work Page 46
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction:
H Cl HCl
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction:
H Cl HCl
1 hydrogen + 1 chlorine 1 hydrochloric acid
atom atom molecule
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction:
H Cl HCl
1 hydrogen + 1 chlorine 1 hydrochloric acid
atom atom molecule
H
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction:
H Cl HCl
1 hydrogen + 1 chlorine 1 hydrochloric acid
atom atom molecule
H Cl
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction:
H Cl HCl
1 hydrogen + 1 chlorine 1 hydrochloric acid
atom atom molecule
H Cl H ClCl
Notes
Compounds
How are elements and compounds different?
B. The properties of compounds are always
different from the properties of the
elements that formed them .
Hydrogen
(gas)
Oxygen
(gas)
=
Water
(liquid)
element element compound
+
What are compounds?
The properties of water are nothing like the
properties of hydrogen and oxygen.
Hydrogen
+
Oxygen
=
Water
explodes
burns
freezes
What are compounds?
+
Hydrogen is an explosive gas. Hydrogen
What are compounds?
+
HydrogenOxygen is a gas which burns. Oxygen
What are compounds?
+
HydrogenThey form water which is a freezing liquid.
water
Class Work
Atoms Molecules
Elements and
Compounds
Thinking Map
Cornell NotesInteractive Notebook Page 45
Atoms Molecules Compounds
Elements Graphic Organizer
Page 45
H2O
react
Atoms Molecules Compounds
Elements Graphic Organizer
Page 45
Atoms Molecules Compounds
Elements Graphic Organizer
Page 45
are always
different from
the properties of
the elements
that form them.
Think-Group-Share
How are compounds different
from the elements they are
made from?
Think-Group-Share
How are compounds different
from the elements they are
made from?
 Compounds always have
different properties than the
elements they are made from.
Question 1:
What are
asteroids?
Building Molecular
Models
Class Work
Copyright Richards 2009
Class Work
Page 46
Class Work Page 46
H Cl HCl1 hydrogen + 1 chlorine 1 hydrochloric acid
atom atom molecule
H Cl H ClCl
Hands on Activity
N 3H NH3
1 nitrogen 3 hydrogen 1 ammonia
atom atoms molecule
=+
Making Molecular Models of Chemical Equations:
1. Write the reaction below.
2. Using the legend, make a model of this reaction:
Hands on Activity
Class Work Page 46
H Cl HCl1 hydrogen + 1 chlorine 1 hydrochloric acid
atom atom molecule
H Cl H ClCl
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction
N 3H NH3
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction
N 3H NH3
1 nitrogen 3 hydrogen 1 ammonia
atom atoms molecule
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction
N 3H NH3
1 nitrogen 3 hydrogen 1 ammonia
atom atoms molecule
N
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction
N 3H NH3
1 nitrogen 3 hydrogen 1 ammonia
atom atoms molecule
N
H
H
H
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction
N 3H NH3
1 nitrogen 3 hydrogen 1 ammonia
atom atoms molecule
H
H
H
N N
H
H
H
Hands on Activity
C 4H CH4
1 carbon 4 hydrogen 1 methane
atom atoms molecule
=+
Making Molecular Models of Chemical Equations:
1. Write the reaction below.
2. Using the legend, make a model of this reaction:
Hands on Activity
Class Work Page 46
H Cl HCl1 hydrogen + 1 chlorine 1 hydrochloric acid
atom atom molecule
H Cl H ClCl
N 3H NH31 nitrogen 3 hydrogen 1 ammonia
atom atoms molecule
H
H
H
N
N
H
H
H
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction
C 4H CH4
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction
C 4H CH4
1 carbon
atom
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction
C 4H CH4
1 carbon
atom
C
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction
C 4H CH4
1 carbon 4 hydrogen
atom atoms
C
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction
C 4H CH4
1 carbon 4 hydrogen
atom atoms
C
H
H
H
H
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction
C 4H CH4
1 carbon 4 hydrogen 1 methane
atom atoms molecule
C
H
H
H
H
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction
C 4H CH4
1 carbon 4 hydrogen 1 methane
atom atoms molecule
C
H
H
H
H
C
H H
H
H
Compounds Lecture
Compounds
Wednesday 12/4/13
• Agenda
– 1. Bellringer:
• Elements and Compounds Cryptogram
– 2. AVID Interactive Notebook
• Pages 45-46
– 3. Homework (Due: Monday 12/9/13)
• Read Textbook: Pages 184-189
• Answer: Section Assessment Page 189
– 4. Note/PowerPoint Presentation
• Molecules, Compounds, and Chemical Formulas
– 5. Class Work
• Building Molecular Models Lab
• Atoms Molecules Elements Compound Thinking Map
Class Work
Elements and
Compounds
Cryptogram
Elements and Compounds Cryptogram
Class Work
Chapters 5 & 8
Study Questions
Class Work
Chapter 5
Study
Questions
Class Work
Chapter 8
Study
Questions
Copyright Richards 2009
Homework: Monday 12/2/13
Homework
Due: Monday 12/9/13
Read Textbook: Pages 184-189
Answer: Section Assessment Page 189
Standard 3: Structure of Matter:
Compounds
Standard 3b: Students know that
compounds are formed by combining
two or more different elements and that
compounds have properties that are
different from their constituent
elements.
California Science Standard
Standard 3: Compounds:
Standard 3F: Students know
how to use the periodic table to
identify elements in simple
compounds.
California Science Standard
Content Objectives
After this lesson I should be able to:
1. Explain how the properties of compounds
are different from the elements that form
them.
2. Interpret what chemical formulas show
about the atoms in compounds.
3. Build models of molecules using atoms.
Language Objectives
After this lesson I should be able to:
1. Read and listen to a presentation.
2. Write information on a thinking map and graphic
organizer.
3. Write Cornell notes.
4. Participate in whole class and small group discussion.
5. Read and write definitions.
6. Read and answer questions.
7. Listen to and takes notes from a video presentation.
Question 1:
What are
asteroids?
Key Question
How are compounds and
elements different?
What do chemical formulas
show about compounds?
Notes
Compounds
Cornell NotesInteractive Notebook Page 45
Notes:
Compounds
Question 1:
What are
asteroids?
Question 6:
What are Chemical
Formulas?
What are chemical formulas?
VI. Chemical symbols are used to represent elements.
Carbon
(solid)
Oxygen
(gas)
=
Sugar
(solid)
element element compound
+
Hydrogen
(gas)
element
+
HC O
What are chemical formulas?
A. Chemical formulas represent compounds.
Carbon
(solid)
Oxygen
(gas)
=
Sugar
(solid)
element element compound
+
Hydrogen
(gas)
element
+
HC O C12H22O11
Think-Group-Share
What do chemical formulas
represent?
Think-Group-Share
What do chemical formulas
represent?
 Chemical formulas represent
compounds.
What are chemical formulas?
The Chemical formula for table sugar is
C12H22O11.
=
Table
Sugar
C12H22O11
Carbon
Oxygen
(gas)
Hydrogen
+
Oxygen
What are chemical formulas?
Table sugar (C12H22O11) contains the elements
carbon, hydrogen and oxygen
=
Table
Sugar
C12H22O11
Carbon
Oxygen
(gas)
Hydrogen
+
Oxygen
Think-Group-Share
What elements are in sugar
C12H22O11?
Think-Group-Share
What elements are in sugar
C12H22O11?
 Sugar is made of the
elements carbon, hydrogen, and
oxygen.
What are compounds?
Chemical formula for table salt is NaCl..
Table
Salt
NaCl
SodiumChlorine
Sodium
=
What are chemical formulas?
Table salt (NaCl) contains the elements
sodium (Na) and chlorine (Cl).
Table
Salt
NaCl
SodiumChlorine
Sodium
=
Cl Na
Think-Group-Share
What elements are in salt NaCl?
Think-Group-Share
What elements are in salt NaCl?
 Salt is made of the elements
sodium and chlorine.
What are chemical formulas?
B. Chemical formulas tell (show) you the elements the
compound is made of .
Carbon
(solid)
Oxygen
(gas)
=
Sugar
(solid)
element element compound
+
Hydrogen
(gas)
element
+
HC O C12H22O11
Class Work
Atoms Molecules
Elements and
Compounds
Thinking Map
Cornell NotesInteractive Notebook Page 45
Atoms Molecules Compounds
Elements Graphic Organizer
Page 45
H2O
react
Atoms Molecules Compounds
Elements Graphic Organizer
Page 45
Atoms Molecules Compounds
Elements Graphic Organizer
Page 45
Atoms Molecules Compounds
Elements Graphic Organizer
Page 45
Chemical
formulas show
the elements in
a compound.
Think-Group-Share
What is one thing a chemical
formula shows you about a
compound?
Think-Group-Share
What is one thing a chemical
formula shows you about a
compound?
 Chemical formulas show you
the elements in a compound.
Notes:
Compounds
What are chemical formulas?
C Ca CaCO3
1 carbon 1 calcium 3 oxygen 1 calcium
atom atom atoms carbonate
molecule
=+
3O
C. Chemical formulas also tell you the numbers of
atoms of each element in a compound.
Class Work
Atoms Molecules
Elements and
Compounds
Thinking Map
Cornell NotesInteractive Notebook Page 45
Atoms Molecules Compounds
Elements Graphic Organizer
Page 45
Chemical
formulas show
the elements in
a compound.
Atoms Molecules Compounds
Elements Graphic Organizer
Page 45
Atoms Molecules Compounds
Elements Graphic Organizer
Page 45
Chemical
formulas show
the number of
atoms of each
element.
Think-Group-Share
What else do chemical formulas
show about compounds?
Think-Group-Share
What else do chemical formulas
show about compounds?
 Chemical formulas also show
the number of atoms of each
element in a compound.
Notes:
Compounds
What are chemical formulas?
C Ca CaCO3
1 carbon 1 calcium 3 oxygen 1 calcium
atom atom atoms carbonate
molecule
=+
3O
C. Chemical formulas also tell you the numbers of
atoms of each element in a compound.
What are chemical formulas?
C Ca CaCO3
1 carbon 1 calcium 3 oxygen 1 calcium
atom atom atoms carbonate
molecule
=+
3O
1. The number 1 is never written in a chemical
formula. If there is 1 atom, a number is not written.
What are chemical formulas?
C Ca CaCO3
1 carbon 1 calcium 3 oxygen 1 calcium
atom atom atoms carbonate
molecule
=+
3O
1. The number 1 is never written in a chemical
formula. If there is 1 atom, a number is not written.
Class Work
Atoms Molecules
Elements and
Compounds
Thinking Map
Cornell NotesInteractive Notebook Page 45
Atoms Molecules Compounds
Elements Graphic Organizer
Page 45
Chemical
formulas show
the number of
atoms of each
element.
Chemical
formulas show
the elements in
a compound.
Atoms Molecules Compounds
Elements Graphic Organizer
Page 45
Chemical
formulas show
the number of
atoms of each
element.
Atoms Molecules Compounds
Elements Graphic Organizer
Page 45
Chemical
formulas show
the number of
atoms of each
element.
The number 1 is never written.
Think-Group-Share
How many oxygen atoms are in
the compound CaCO3 (calcium
carbonate)?
Think-Group-Share
How many oxygen atoms are in
the compound CaCO3 (calcium
carbonate)?
 There are 3 oxygen atoms in
a molecule of CaCO3
The number 3 tells
you there are 3
Oxygen atoms
Think-Group-Share
How many carbon atoms are in
the compound CaCO3 (calcium
carbonate)?
Think-Group-Share
How many carbon atoms are in
the compound CaCO3 (calcium
carbonate)?
 There is 1 carbon atom in a
molecule of CaCO3
When no number is
written, it means
there is 1 atom of
that element.
Think-Group-Share
How many calcium atoms are in
the compound CaCO3 (calcium
carbonate)?
Think-Group-Share
How many calcium atoms are in
the compound CaCO3 (calcium
carbonate)?
 There is 1 calcium atom in a
molecule of CaCO3
When no number is
written, it means
there is 1 atom of
that element.
What are chemical formulas?
C Ca CaCO3
1 carbon 1 calcium 3 oxygen 1 calcium
atom atom atoms carbonate
molecule
=+
3O
C. Chemical formulas also tell you the numbers of
atoms of each element in a compound.
Compounds Lecture
Compounds
Thursday 12/5/13
• Agenda
– 1. Bellringer:
• Elements and Compounds Cryptogram
– 2. AVID Interactive Notebook
• Pages 45-46
– 3. Homework (Due: Monday 12/9/13)
• Read Textbook: Pages 184-189
• Answer: Section Assessment Page 189
– 4. Note/PowerPoint Presentation
• Molecules, Compounds, and Chemical Formulas
– 5. Class Work
• Building Molecular Models Lab
• Atoms Molecules Elements Compound Thinking Map
Class Work
Elements and
Compounds
Cryptogram
Elements and Compounds Cryptogram
Class Work
Chapters 5 & 8
Study Questions
Class Work
Chapter 5
Study
Questions
Class Work
Chapter 8
Study
Questions
Copyright Richards 2009
Homework: Monday 12/2/13
Homework
Due: Monday 12/9/13
Read Textbook: Pages 184-189
Answer: Section Assessment Page 189
Standard 3: Structure of Matter:
Compounds
Standard 3b: Students know that
compounds are formed by combining
two or more different elements and that
compounds have properties that are
different from their constituent
elements.
California Science Standard
Standard 3: Compounds:
Standard 3F: Students know
how to use the periodic table to
identify elements in simple
compounds.
California Science Standard
Content Objectives
After this lesson I should be able to:
1. Explain how the properties of compounds
are different from the elements that form
them.
2. Interpret what chemical formulas show
about the atoms in compounds.
3. Build models of molecules using atoms.
Language Objectives
After this lesson I should be able to:
1. Read and listen to a presentation.
2. Write information on a thinking map and graphic
organizer.
3. Write Cornell notes.
4. Participate in whole class and small group discussion.
5. Read and write definitions.
6. Read and answer questions.
7. Listen to and takes notes from a video presentation.
Question 1:
What are
asteroids?
Key Question
How are compounds and
elements different?
What do chemical formulas
show about compounds?
Question 1:
What are
asteroids?
Matter and Its
Properties“What
Makes Up Matter?”
(9:33)
Discovery Streaming Video
Question 1:
What are
asteroids?
“Assignment Discovery
Compounds and
Chemical Reactions
“Bonds: Keeping it
Together”
(13:15)
Discovery Streaming Video
Compounds
Review
Cornell NotesInteractive Notebook Page 45
Think-Group-Share
1. THINK: Read the question and
THINK about the answer.
2. GROUP: Discuss the answer with
your teammates and agree on the
correct answer.
3. SHARE your answers by writing them
on the magnetic slate and holding
them up.
Think-Write-Group-Share
What is all matter
made of?
 A. 26 man-made elements
 B. 92 naturally occurring elements
 C. 118 elements
Think-Write-Group-Share
What is all matter
made of?
 A. 26 man-made elements
 B. 92 naturally occurring elements
 C. 118 elements
Think-Write-Group-Share
What are the smallest
particles of matter?
 A. elements
 B. atoms
 C. compounds
Think-Write-Group-Share
What are the smallest
particles of matter?
 A. elements
 B. atoms
 C. compounds
Think-Write-Group-Share
What is true about naturally
occurring elements?
 A. They can be made.
B. They can be destroyed.
C. They cannot be made or
destroyed.
Think-Write-Group-Share
What is true about naturally
occurring elements?
 A. They can be made.
B. They can be destroyed.
C. They cannot be made or
destroyed.
Think-Write-Group-Share
What are compounds made
from?
 A. The chemical reaction of 2
or more elements.
B. The mixing of 2 or more
elements.
Think-Write-Group-Share
What are compounds made
from?
 A. The chemical reaction of 2
or more elements.
B. The mixing of 2 or more
elements.
Think-Write-Group-Share
What is true about the
properties of compounds?
 A. They are the same as the
elements that form them.
B. They are different from the
elements that form them.
Think-Write-Group-Share
What is true about the
properties of compounds?
 A. They are the same as the
elements that form them.
B. They are different from the
elements that form them.
Think-Write-Group-Share
What 2 things do chemical
formulas show?
 A. The elements in a compound.
 B. How elements react in a
compound.
 C. The number of atoms of each
element in a compound.
Think-Write-Group-Share
What 2 things do chemical
formulas show?
 A. The elements in a compound.
 B. How elements react in a
compound.
 C. The number of atoms of each
element in a compound.
Question 1:
What are
asteroids?
Building Molecular
Models
Class Work
Think-Group-Share
Look at the chemical formula for the
compound water.
H2O
How many hydrogen atoms are in
1 molecule of water ?
Think-Group-Share
H2O
How many hydrogen atoms are in
1 molecule of water?
 There are 2 hydrogen atoms in
1 molecule of water.
Think-Group-Share
What does the 2 in H2O tell us?
Think-Group-Share
What does the 2 in H2O tell us?
 The 2 tells us there are 2
hydrogen atoms in a molecule of
water (H2O).
Think-Group-Share
Look at the chemical formula for the
compound water.
H2O
How many oxygen atoms are in 1
molecule of water?
Think-Group-Share
H2O
How many oxygen atoms are in 1
molecule of water?
 There is 1 oxygen atom in 1
molecule of water.
(1 is never written)
Think-Group-Share
What does the O in H2O tell us?
Think-Group-Share
What does the O in H2O tell us?
 The O tells us there is 1
oxygen atom in a molecule of
water (H2O).
Class Work Page 46
Hands on Activity
2H O H2O
2 hydrogen 1 oxygen 1 water
atoms atom molecule
=+
Making Molecular Models of Chemical Equations:
1. Write the reaction below.
2. Using the legend, make a model of this reaction:
Hands on Activity
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction:
2H O H2O
2 hydrogen 1 oxygen 1 water
atoms atom molecule
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction:
2H O H2O
2 hydrogen 1 oxygen 1 water
atoms atom molecule
H
H
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction:
2H O H2O
2 hydrogen 1 oxygen 1 water
atoms atom molecule
O
H
H
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction:
2H O H2O
2 hydrogen 1 oxygen 1 water
atoms atom molecule
O
H
H
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction:
2H O H2O
2 hydrogen 1 oxygen 1 water
atoms atom molecule
O
HH
O
H
H
Think-Group-Share
Look at the chemical formula for the
compound hydrogen peroxide.
H2O2
How many hydrogen atoms are in
1 molecule of peroxide?
Think-Group-Share
H2O2
How many hydrogen atoms are in
1 molecule of peroxide?
 There are 2 hydrogen atoms in
1 molecule of peroxide.
Think-Group-Share
What does the H2 in H2O2 tell us?
Think-Group-Share
What does the H2 in H2O2 tell us?
 The H2 tells us there are 2
hydrogen atoms in a molecule of
peroxide (H2O2).
Think-Group-Share
Look at the chemical formula for the
compound peroxide.
H2O2
How many oxygen atoms are in 1
molecule of peroxide?
Think-Group-Share
H2O2
How many oxygen atoms are in 1
molecule of peroxide?
 There are 2 oxygen atoms in 1
molecule of peroxide.
Think-Group-Share
What does the O2 in H2O2 tell
us?
Think-Group-Share
What does the O2 in H2O2 tell
us?
 The O2 tells us there are 2
oxygen atoms in a molecule
of peroxide (H2O2).
Class Work Page 46
Hands on Activity
2H 2O H2O2
2 hydrogen 2 oxygen 1 peroxide
atoms atoms molecule
=+
Making Molecular Models of Chemical Equations:
1. Write the reaction below.
2. Using the legend, make a model of this reaction:
Hands on Activity
Making Molecular Models of Compounds:
Use this Legend:
white = hydrogen H
sodium Na
red = oxygen O
black = carbon C
green = chlorine Cl
= fluorine F
orange = nitrogen N
yellow = sulfur S
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction
2H 2O H2O2
2 hydrogen 2 oxygen 1 peroxide
atoms atoms molecule
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction
2H 2O H2O2
H
H
2 hydrogen 2 oxygen 1 peroxide
atoms atoms molecule
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction
2H 2O H2O2
O
H
H
O
2 hydrogen 2 oxygen 1 peroxide
atoms atoms molecule
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction
2H 2O H2O2
2 hydrogen 2 oxygen 1 peroxide
atoms atoms molecule
O
H
H
O
H
H O
O
Think-Group-Share
How does adding an O to the
compound H2O change it?
water
Think-Group-Share
How does adding an O to the
compound H2O change it?
water (H2O)
Adding an O changes water (H2O) into
peroxide (H2O2).
peroxide (H2O2)
Think-Group-Share
Look at the chemical formula for the
compound carbon dioxide.
CO2
How many carbon atoms are in 1
molecule of carbon dioxide?
Think-Group-Share
CO2
How many carbon atoms are in 1
molecule of carbon dioxide?
 There is 1 carbon atom in 1
molecule of carbon dioxide.
Think-Group-Share
How do you know there is 1
carbon atom in CO2?
Think-Group-Share
How do you know there is 1
carbon atom in CO2?
 No number is written after the
C for carbon.
CO2
(1 is never written)
Think-Group-Share
Look at the chemical formula for the
compound carbon dioxide.
CO2
How many oxygen atoms are in 1
molecule of carbon dioxide?
Think-Group-Share
CO2
How many oxygen atoms are in 1
molecule of carbon dioxide?
 There are 2 oxygen atoms in 1
molecule of carbon dioxide.
Think-Group-Share
How do you know there are 2
oxygen atoms in CO2?
Think-Group-Share
How do you know there are 2
oxygen atoms in CO2?
 The number 2 is written after
the O for oxygen.
CO2
(2 is written)
Class Work Page 46
Hands on Activity
C 2O CO2
1 carbon 2 oxygen 1 carbon dioxide
atom atoms molecule
=+
Making Molecular Models of Chemical Equations:
1. Write the reaction below.
2. Using the legend, make a model of this reaction:
Hands on Activity
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction.
C 2O CO2
1 carbon 2 oxygen 1 carbon dioxide
atom atoms molecule
C
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction.
C 2O CO2
1 carbon 2 oxygen 1 carbon dioxide
atom atoms molecule
OC O
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction.
C 2O CO2
1 carbon 2 oxygen 1 carbon dioxide
atom atoms molecule
CO O
OC O
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction.
2. Label reactants and products.
C 2O CO2
1 carbon 2 oxygen 1 carbon dioxide
atom atoms molecule
OC C
O
O O
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction.
2. Label reactants and products.
C 2O CO2
1 carbon 2 oxygen 1 carbon dioxide
atom atoms molecule
OC C
O
O O
Think-Group-Share
Look at the chemical formula for the
compound carbon monoxide.
CO
How many carbon atoms are in 1
molecule of carbon monoxide?
Think-Group-Share
CO
How many carbon atoms are in 1
molecule of carbon monoxide?
 There is 1 carbon atom in 1
molecule of carbon monoxide.
Think-Group-Share
How do you know there is 1
carbon atom in CO?
Think-Group-Share
How do you know there is 1
carbon atom in CO?
 No number is written after the
C for carbon.
CO
(1 is never written)
Think-Group-Share
Look at the chemical formula for the
compound carbon monoxide.
CO
How many oxygen atoms are in 1
molecule of carbon monoxide?
Think-Group-Share
CO
How many oxygen atoms are in 1
molecule of carbon monoxide?
 There is 1 oxygen atom in 1
molecule of carbon monoxide.
Think-Group-Share
How do you know there is 1
oxygen atom in CO?
Think-Group-Share
How do you know there is 1
oxygen atom in CO?
 No number is written after the
O for oxygen.
CO
(No number means 1 atom)
Hands on Activity
C O CO
1 carbon 1 oxygen 1 carbon monoxide
atom atom molecule
=+
Making Molecular Models of Chemical Equations:
1. Write the reaction below.
2. Using the legend, make a model of this reaction:
Class Work Page 46
Do Not write this
Equation
Hands on Activity
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction
2. Label reactants and products.
C O CO
1 carbon 1 oxygen 1 carbon monoxide
atom atoms molecule
C
Do not write.
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction
2. Label reactants and products.
C O CO
1 carbon 1 oxygen 1 carbon monoxide
atom atoms molecule
OC
Do not write.
Hands on Activity
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction
2. Label reactants and products.
C O CO
1 carbon 1 oxygen 1 carbon monoxide
atom atoms molecule
C O C O
Do not write.
Think-Group-Share
How does taking away an
oxygen atom (O) from the
compound CO2 change it?
carbon dioxide
Think-Group-Share
How does taking away an oxygen atom
(O) from the compound CO2 change it?
carbon dioxide (CO2)
Taking away an O changes carbon dioxide
(CO2) into carbon monoxide (CO).
carbon monoxide (CO)
Think-Group-Share
How many oxygen atoms are in
the compound CaCO3 (calcium
carbonate)?
Think-Group-Share
How many oxygen atoms are in
the compound CaCO3 (calcium
carbonate)?
 There are 3 oxygen atoms in
a molecule of CaCO3
The number 3 tells
you there are 3
Oxygen atoms
Think-Group-Share
Look at the chemical formula for the
compound calcium carbonate.
CaCO3
How many calcium atoms are in 1
molecule of calcium carbonate?
Think-Group-Share
CaCO3
How many calcium atoms are in 1
molecule of calcium carbonate?
 There is 1 calcium atom in 1
molecule of calcium carbonate.
Think-Group-Share
How do you know there is 1
calcium atom in CaCO3?
Think-Group-Share
How do you know there is 1
calcium atom in CaCO3?
 No number is written after the
Ca for calcium.
CaCO3
(1 is never written)
Think-Group-Share
Look at the chemical formula for the
compound calcium carbonate.
CaCO3
How many carbon atoms are in 1
molecule of calcium carbonate?
Think-Group-Share
CaCO3
How many carbon atoms are in 1
molecule of calcium carbonate?
 There is 1 carbon atom in 1
molecule of calcium carbonate.
Think-Group-Share
How do you know there is 1
carbon atom in CaCO3?
Think-Group-Share
How do you know there is 1
carbon atom in CaCO3?
 No number is written after the
C for carbon.
CaCO3
(1 is never written)
Think-Group-Share
Look at the chemical formula for the
compound calcium carbonate.
CaCO3
How many oxygen atoms are in 1
molecule of calcium carbonate?
Think-Group-Share
CaCO3
How many oxygen atoms are in 1
molecule of calcium carbonate?
 There are 3 oxygen atoms in 1
molecule of calcium carbonate.
Think-Group-Share
How do you know there are 3
oxygen atoms in CaCO3?
Think-Group-Share
How do you know there are 3
oxygen atoms in CaCO3?
 The number 3 is written after
the O for oxygen.
CaCO3
(3 is written)
Compounds Lecture
Compounds
Friday 12/6/13
• Agenda
– 1. Bellringer:
• Elements and Compounds Cryptogram
– 2. AVID Interactive Notebook
• Pages 45-46
– 3. Homework (Due: Monday 12/9/13)
• Read Textbook: Pages 184-189
• Answer: Section Assessment Page 189
– 4. Note/PowerPoint Presentation
• Compounds and Chemical Formulas
– 5. Class Work/Cooperative Learning
• Building Molecular Models Lab
• Interpreting Chemical Formulas
• Chemical Formulas Activity
Class Work
Elements and
Compounds
Cryptogram
Elements and Compounds Cryptogram
Class Work
Chapters 5 & 8
Study Questions
Class Work
Chapter 5
Study
Questions
Class Work
Chapter 8
Study
Questions
Copyright Richards 2009
Homework: Monday 12/2/13
Homework
Due: Monday 12/9/13
Read Textbook: Pages 184-189
Answer: Section Assessment Page 189
Standard 3: Structure of Matter:
Compounds
Standard 3b: Students know that
compounds are formed by combining
two or more different elements and that
compounds have properties that are
different from their constituent
elements.
California Science Standard
Standard 3: Compounds:
Standard 3F: Students know
how to use the periodic table to
identify elements in simple
compounds.
California Science Standard
Content Objectives
After this lesson I should be able to:
1. Explain how the properties of compounds
are different from the elements that form
them.
2. Interpret what chemical formulas show
about the atoms in compounds.
3. Build models of molecules using atoms.
Language Objectives
After this lesson I should be able to:
1. Read and listen to a presentation.
2. Write information on a thinking map and graphic
organizer.
3. Write Cornell notes.
4. Participate in whole class and small group discussion.
5. Read and write definitions.
6. Read and answer questions.
7. Listen to and takes notes from a video presentation.
Question 1:
What are
asteroids?
Key Question
How are compounds and
elements different?
What do chemical formulas
show about compounds?
Question 1:
What are
asteroids?
“Physical Science
Series: Elements,
Compounds and
Atoms”
Compounds Segment
Discovery Streaming Video
Question 1:
What are
asteroids?
“Chemical Bonds
Elements,
Compounds and
Atoms”
Discovery Streaming Video
Question 1:
What are
asteroids?
Building Molecular
Models
Class Work
Class Work Page 46
Hands on Activity
C Ca CaCO3
1 carbon 1 calcium 3 oxygen 1 calcium
atom atom atoms carbonate
molecule
=+
Making Molecular Models of Chemical Equations:
1. Write the reaction below.
2. Using the legend, make a model of this reaction:
3O
Think-Group-Share
Look at the chemical equation for the
compound calcium carbonate.
What are the elements in this
chemical reaction?
C Ca CaCO33O
Think-Group-Share
What are the elements in this
chemical reaction?
 carbon, calcium, and oxygen
C Ca CaCO33O
elements
Think-Group-Share
Look at the chemical equation for the
compound calcium carbonate.
What is the compound formed in
this chemical reaction?
C Ca CaCO33O
Think-Group-Share
What is the compound formed in
this chemical reaction?
 CaCO3
C Ca CaCO33O
compound
Hands on Activity
Hands on Activity
C Ca CaCO3
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction.
2. Label reactants and products.
3O
Hands on Activity
C Ca CaCO3
1 carbon
atom
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction:
3O
C
Hands on Activity
C Ca CaCO3
1 carbon 1 calcium
atom atom
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction:
3O
C
Hands on Activity
C Ca CaCO3
1 carbon 1 calcium
atom atom
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction:
3O
C Ca
Hands on Activity
C Ca CaCO3
1 carbon 1 calcium 3 oxygen
atom atom atoms
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction:
3O
C Ca
Hands on Activity
C Ca CaCO3
1 carbon 1 calcium 3 oxygen
atom atom atoms
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction:
3O
C Ca O
OO
Hands on Activity
C Ca CaCO3
1 carbon 1 calcium 3 oxygen
atom atom atoms
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction:
3O
C Ca O
OO
Hints:
1. The carbon
atom is bonded to
the 3 oxygen
atoms.
2. One bond is a
double bond
C=O.
3. C, Ca and 2 Os
form a ring.
Hands on Activity
C Ca CaCO3
1 carbon 1 calcium 3 oxygen 1 calcium
atom atom atoms carbonate
molecule
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction:
3O
O
OO
C Ca
Hands on Activity
C Ca CaCO3
1 carbon 1 calcium 3 oxygen 1 calcium
atom atom atoms carbonate
molecule
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction:
3O
O
OO
C Ca
C
O
Ca
O
O
Question 1:
What are
asteroids?
Building Molecular
Models
Class Work
Think-Group-Share
Look at the chemical formula for the
compound methanol.
CH3OH
What elements are in the
compound methanol?
Think-Group-Share
Look at the chemical formula for the
compound methanol.
CH3OH
What elements are in the
compound methanol?
 carbon, hydrogen, oxygen
Think-Group-Share
Look at the chemical formula for the
compound methanol.
CH3OH
How many carbon atoms are in 1
molecule of methanol?
Think-Group-Share
CH3OH
How many carbon atoms are in 1
molecule of methanol?
 There is 1 carbon atom in 1
molecule of methanol.
Think-Group-Share
Look at the chemical formula for the
compound methanol.
CH3OH
How many oxygen atoms are in 1
molecule of methanol?
Think-Group-Share
CH3OH
How many carbon atoms are in 1
molecule of methanol?
 There is 1 oxygen atom in 1
molecule of methanol.
Think-Group-Share
Look at the chemical formula for the
compound methanol.
CH3OH
How many hydrogen atoms are in
1 molecule of methanol?
Think-Group-Share
CH3OH
How many hydrogen atoms are in
1 molecule of methanol?
 There are 4 hydrogen atoms in
1 molecule of methanol.
(This is 1 hydrogen atom)
(This is 3 hydrogen atoms)
Hands on Activity
C 4H CH3OH
1 carbon 4 hydrogen 1 oxygen 1 methanol
atom atoms atom molecule
=+
Making Molecular Models of Chemical Equations:
1. Write the reaction below.
2. Using the legend, make a model of this reaction:
O
+
Hands on Activity
C 4H CH3OH
1 carbon 4 hydrogen 1 oxygen 1 methanol
atom atoms atom molecule
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction.
2. Label reactants and products.
O
Hands on Activity
C 4H CH3OH
1 carbon 4 hydrogen 1 oxygen 1 methanol
atom atoms atom molecule
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction:
O
C
H
H
H
H O
Hands on Activity
C 4H CH3OH
1 carbon 4 hydrogen 1 oxygen 1 methanol
atom atoms atom molecule
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction:
O
C
H
H
H
H O
Hints:
1. The carbon atom is
bonded to 3 hydrogen
atoms.
2. The oxygen atom is
bonded to 1 hydrogen
atom.
3. The carbon is bonded
to the oxygen atom.
Hands on Activity
C 4H CH3OH
1 carbon 4 hydrogen 1 oxygen 1 methanol
atom atoms atom molecule
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction:
O
C
C
O
H
H
H
H O
H
HH
H
Hands on Activity
C 4H CH3OH
1 carbon 4 hydrogen 1 oxygen 1 methanol
atom atoms atom molecule
Making Molecular Models of Chemical Equations:
1. Using the legend, make a model of this reaction:
O
C
O
H
HH
H
Question 1:
What are
asteroids?
Building Molecular
Models
Class Work
Think-Group-Share
Look at the chemical formula for the
compound vinegar (acetic acid).
CH3COOH
What elements are in the
compound vinegar?
Think-Group-Share
Look at the chemical formula for the
compound vinegar.
CH3COOH
What elements are in the
compound vinegar?
 carbon, hydrogen, oxygen
Think-Group-Share
Look at the chemical formula for the
compound vinegar.
CH3COOH
How many carbon atoms are in 1
molecule of vinegar?
Think-Group-Share
CH3COOH
How many carbon atoms are in 1
molecule of vinegar?
 There are 2 carbon atoms in 1
molecule of vinegar.
Think-Group-Share
Look at the chemical formula for the
compound vinegar.
CH3COOH
How many oxygen atoms are in 1
molecule of vinegar?
Think-Group-Share
CH3COOH
How many oxygen atoms are in 1
molecule of vinegar?
 There are 2 oxygen atoms in 1
molecule of vinegar.
Think-Group-Share
Look at the chemical formula for the
compound vinegar.
CH3COOH
How many hydrogen atoms are in
1 molecule of vinegar?
Think-Group-Share
CH3COOH
How many hydrogen atoms are in
1 molecule of vinegar?
 There are 4 hydrogen atoms in
1 molecule of vinegar.
(This is 1 hydrogen atom)
(This is 3 hydrogen atoms)
Hands on Activity
2C 4H CH3COOH
2 carbon 4 hydrogen 2 oxygen 1 acetic
atom atoms atoms acid
molecule
=+
Making Molecular Models of Chemical Equations:
1. Write the reaction below.
2. Using the legend, make a model of this reaction:
2O
Hands on Activity
Hands on Activity
2C 4H CH3COOH
Making Molecular Models of Chemical Equations:
1. Write the reaction below.
2. Using the legend, make a model of this reaction:
2O
Hands on Activity
2C 4H CH3COOH
Making Molecular Models of Chemical Equations:
1. Write the reaction below.
2. Using the legend, make a model of this reaction:
2O
2 carbon
atoms
Hands on Activity
2C 4H CH3COOH
Making Molecular Models of Chemical Equations:
1. Write the reaction below.
2. Using the legend, make a model of this reaction:
2O
2 carbon
atoms
C
C
Hands on Activity
2C 4H CH3COOH
Making Molecular Models of Chemical Equations:
1. Write the reaction below.
2. Using the legend, make a model of this reaction:
2O
2 carbon 4 hydrogen
atoms atoms
C
C
Hands on Activity
2C 4H CH3COOH
Making Molecular Models of Chemical Equations:
1. Write the reaction below.
2. Using the legend, make a model of this reaction:
2O
2 carbon 4 hydrogen
atoms atoms
C
C
H
H
H
H
2 carbon 4 hydrogen 2 oxygen
atoms atoms atoms
Hands on Activity
2C 4H CH3COOH
Making Molecular Models of Chemical Equations:
1. Write the reaction below.
2. Using the legend, make a model of this reaction:
2O
2 carbon 4 hydrogen
atom
C
C
H
H
H
H
Hands on Activity
2C 4H CH3COOH
Making Molecular Models of Chemical Equations:
1. Write the reaction below.
2. Using the legend, make a model of this reaction:
2O
2 carbon 4 hydrogen
atom atoms
C
C
H
H
H
H
2 carbon 4 hydrogen 2 oxygen
atom atoms atoms
O
O
Hands on Activity
2C 4H CH3COOH
Making Molecular Models of Chemical Equations:
1. Write the reaction below.
2. Using the legend, make a model of this reaction:
2O
2 carbon 4 hydrogen
atom atoms
C
C
H
H
H
H
2 carbon 4 hydrogen 2 oxygen 1 acetic
atom atoms atoms acid
molecule
O
O
Hands on Activity
CH3COOH
Making Molecular Models of Chemical Equations:
1. Write the reaction below.
2. Using the legend, make a model of this reaction:
CCH
H
H
O
O H
Hands on Activity
CH3COOH
Making Molecular Models of Chemical Equations:
1. Write the reaction below.
2. Using the legend, make a model of this reaction:
C
O
O
H
CH
H
H
CCH
H
H
O
O H
Hands on Activity
2C 4H CH3COOH
Making Molecular Models of Chemical Equations:
1. Write the reaction below.
2. Using the legend, make a model of this reaction:
2O
2 carbon 4 hydrogen
atom atoms
C
C
H
H
H
H
2 carbon 4 hydrogen 2 oxygen 1 acetic
atom atoms atoms acid
molecule
O
O
C
O
O
H
C
H HH
Hands on Activity
CH3COOH
Making Molecular Models of Chemical Equations:
1. Write the reaction below.
2. Using the legend, make a model of this reaction:
C
O
O
H
CH
H
H
CCH
H
H
O
O H
Question 1:
What are
asteroids?
Interpreting Chemical
Formulas
Guided Practice
Copyright Richards 2009
Interpreting Chemical Formulas
• Think about the question.
• Group with your teammates.
Discuss your answer with your teammates.
• Share with someone else
Share your answer with the class.
Interpreting Chemical Formulas
CRn2 CrN2
Are these two compounds made of
the same elements?
Think-Group-Share
 Yes
 No
CRn2 CrN2
Are these two compounds made
of the same elements?
Think-Group-Share
 Yes
 No
CRn2 CrN2
Are these two compounds made
of the same elements?
Interpreting Chemical Formulas
CRn2 CrN2
How would you separate the molecule?
c
Where would you
separate the
molecule into two
elements?
Think-Group-Share
CRn2 CrN2
c
Where would
you separate
this molecule
into two
elements?
Think-Group-Share
CRn2 CrN2
c
Where would
you separate
this molecule?
C Rn2
Interpreting Chemical Formulas
CRn2 CrN2
How would you separate the molecule?
c
C Rn2
Interpreting Chemical Formulas
CRn2 CrN2
How would you separate the molecule?
c
C Rn2
Where would you
separate the
molecule into two
elements?
Think-Group-Share
CRn2 CrN2
c
Where would
you separate
this molecule?
C Rn2
Think-Group-Share
CRn2 CrN2
c
Where would
you separate
this molecule?
C Rn2 Cr N2
Interpreting Chemical Formulas
CRn2 CrN2
The molecules are separated into
atoms.
c
C Rn2
Cr N2
Interpreting Chemical Formulas
CRn2 CrN2
What are the elements?
c
C Rn2
Cr N2
Think-Group-Share
CRn2 CrN2
c
What are the
elements?
C Rn2 Cr N2
Interpreting Chemical Formulas
CRn2 CrN2
What are the elements?
carbon
C Rn2
Cr N2
Interpreting Chemical Formulas
CRn2 CrN2
What are the elements?
carbon
C Rn2
Cr N2
radon
Think-Group-Share
CRn2 CrN2
What are the
elements?
C Rn2 Cr N2
Interpreting Chemical Formulas
CRn2 CrN2
What are the elements?
carbon
C Rn2
Cr N2
radon chromium
Interpreting Chemical Formulas
CRn2 CrN2
What are the elements?
carbon
C Rn2
Cr N2
radon chromium nitrogen
Question 1:
What are
asteroids?
Interpreting Chemical
Formulas
Independent Practice
Think-Group-Share
1. THINK: Read the question and
THINK about the answer.
2. GROUP: Discuss the answer with
your teammates and agree on the
correct answer.
3. SHARE your answers by writing them
on the magnetic slate and holding
them up.
Interpreting Chemical Formulas
OsPb3
Are these 3 compounds the same?
OsPB3 OSPb3
Think-Group-Share
 Yes
 No
Are these three compounds the
same?
OsPb3 OsPB3 OSPb3
Think-Group-Share
 Yes
 No
Are these three compounds the
same?
OsPb3 OsPB3 OSPb3
Interpreting Chemical Formulas
OsPb3 OsPB3 OSPb3
Are these 3 compounds made of the
same elements?
Think-Group-Share
 Yes
 No
Are these three compounds all
made of the same elements?
OsPb3 OsPB3 OSPb3
Think-Group-Share
 Yes
 No
Are these three compounds all
made of the same elements?
OsPb3 OsPB3 OSPb3
Interpreting Chemical Formulas
OsPb3 OsPB3 OSPb3
How would you separate the
chemical symbols?
Think-Group-Share
Where would
you separate
this molecule?
OsPb3
Think-Group-Share
Where would
you separate
this molecule?
OsPb3
Os Pb3
Interpreting Chemical Formulas
OsPb3 OsPB3 OSPb3
How would you separate the
chemical symbols?
Interpreting Chemical Formulas
Os Pb3 OsPB3 OSPb3
How would you separate the
chemical symbols?
Think-Group-Share
Where would
you separate
this molecule?
OsPB3
Think-Group-Share
Where would
you separate
this molecule?
OsPB3
Os P B3
Interpreting Chemical Formulas
Os Pb3 OsPB3 OSPb3
How would you separate the
chemical symbols?
Interpreting Chemical Formulas
Os Pb3 Os P B3 OSPb3
How would you separate the
chemical symbols?
Think-Group-Share
Where would
you separate
this molecule?
OSPb3
Think-Group-Share
Where would
you separate
this molecule?
OSPb3
O S Pb3
Interpreting Chemical Formulas
Os Pb3 Os P B3 OSPb3
How would you separate the
chemical symbols?
Interpreting Chemical Formulas
Os Pb3 Os P B3 O S Pb3
How would you separate the
chemical symbols?
Interpreting Chemical Formulas
Os Pb3 Os P B3 O S Pb3
What elements are these
Compounds made of?
Interpreting Chemical Formulas
Os Pb3 Os P B3 O S Pb3
What elements are these
Compounds made of?
osmium
Interpreting Chemical Formulas?
Os Pb3 Os P B3 O S Pb3
osmium lead
What elements are these
Compounds made of?
Interpreting Chemical Formulas?
Os Pb3 Os P B3 O S Pb3
osmium lead
What elements are these
compounds made of?
Interpreting Chemical Formulas
Os Pb3 Os P B3 O S Pb3
osmium lead
osmium
What elements are these
compounds made of?
Interpreting Chemical Formulas
Os Pb3 Os P B3 O S Pb3
osmium lead
osmium
phosphorus
What elements are these
compounds made of?
Interpreting Chemical Formulas
Os Pb3 Os P B3 O S Pb3
osmium lead
osmium
phosphorus
boron
What elements are these
compounds made of?
Interpreting Chemical Formulas
Os Pb3 Os P B3 O S Pb3
osmium lead
osmium
phosphorus
boron
What elements are these
compounds made of?
Interpreting Chemical Formulas?
Os Pb3 Os P B3 O S Pb3
osmium lead
osmium
phosphorus
boron
oxygen
What elements are these
compounds made of?
Interpreting Chemical Formulas
Os Pb3 Os P B3 O S Pb3
osmium lead
osmium
phosphorus
boron
oxygen
sulfur
What elements are these
compounds made of?
Interpreting Chemical Formulas
Os Pb3 Os P B3 O S Pb3
osmium lead
osmium
phosphorus
boron
oxygen
sulfur
lead
What elements are these
compounds made of?
Question 1:
What are
asteroids?
Chemical
Formulas Activity
Class Work
Chemical Formulas Activity
Chemical Formulas Activity
Chemical Formulas Activity
Chemical Formulas Activity
?
What is the first element in CH4?
Chemical Formulas Activity
What is the first element in CH4?
carbon
Chemical Formulas Activity
How many atoms of carbon are in CH4?
?carbon
Chemical Formulas Activity
How many atoms of carbon are in CH4?
carbon 1
Chemical Formulas Activity
What is the second element in CH4?
?carbon 1
Chemical Formulas Activity
carbon
What is the second element in CH4?
1 hydrogen
Chemical Formulas Activity
carbon
How many atoms of hydrogen are in CH4?
1 hydrogen ?
Chemical Formulas Activity
carbon
How many atoms of hydrogen are in CH4?
1 hydrogen 4
Chemical Formulas Activity
carbon
What is the first element in NaOH?
1 hydrogen 4
?
Chemical Formulas Activity
carbon
What is the first element in NaOH?
1 hydrogen 4
sodium
Chemical Formulas Activity
carbon
How many atoms of sodium are in NaOH?
1 hydrogen 4
sodium ?
Chemical Formulas Activity
carbon
How many atoms of sodium are in NaOH?
1 hydrogen 4
sodium 1
Chemical Formulas Activity
carbon
What is the second element in NaOH?
1 hydrogen 4
sodium 1 ?
Chemical Formulas Activity
carbon
What is the second element in NaOH?
1 hydrogen 4
sodium 1 oxygen
Chemical Formulas Activity
carbon
How many atoms of oxygen are in NaOH?
1 hydrogen 4
sodium 1 oxygen ?
Chemical Formulas Activity
carbon
How many atoms of oxygen are in NaOH?
1 hydrogen 4
sodium 1 oxygen 1
Chemical Formulas Activity
carbon
What is the third element in NaOH?
1 hydrogen 4
sodium 1 oxygen 1 ?
Chemical Formulas Activity
carbon
What is the third element in NaOH?
1 hydrogen 4
sodium 1 oxygen 1 hydrogen
Chemical Formulas Activity
carbon
How many atoms are in NaOH?
1 hydrogen 4
sodium 1 oxygen 1 hydrogen ?
Chemical Formulas Activity
carbon
How many atoms are in NaOH?
1 hydrogen 4
sodium 1 oxygen 1 hydrogen 1
Chemical Formulas Activity
Chemical Formulas Activity
Chemical Formulas Activity
Question 1:
What are
asteroids?
Making Compounds
Practice
SMART Activity
Compounds
Review
Cornell NotesInteractive Notebook Page 45
Think-Group-Share
1. THINK: Read the question and
THINK about the answer.
2. GROUP: Discuss the answer with
your teammates and agree on the
correct answer.
3. SHARE your answers by writing them
on the magnetic slate and holding
them up.
Think-Write-Group-Share
What is all matter
made of?
 A. 26 man-made elements
 B. 92 naturally occurring elements
 C. 118 elements
Think-Write-Group-Share
What is all matter
made of?
 A. 26 man-made elements
 B. 92 naturally occurring elements
 C. 118 elements
Think-Write-Group-Share
What are the smallest
particles of matter?
 A. elements
 B. atoms
 C. compounds
Think-Write-Group-Share
What are the smallest
particles of matter?
 A. elements
 B. atoms
 C. compounds
Think-Write-Group-Share
What is true about naturally
occurring elements?
 A. They can be made.
B. They can be destroyed.
C. They cannot be made or
destroyed.
Think-Write-Group-Share
What is true about naturally
occurring elements?
 A. They can be made.
B. They can be destroyed.
C. They cannot be made or
destroyed.
Think-Write-Group-Share
What are compounds made
from?
 A. The chemical reaction of 2
or more elements.
B. The mixing of 2 or more
elements.
Think-Write-Group-Share
What are compounds made
from?
 A. The chemical reaction of 2
or more elements.
B. The mixing of 2 or more
elements.
Think-Write-Group-Share
What elements are in
the compound NF3 ?
Think-Write-Group-Share
What elements are in
the compound NF3 ?
 nitrogen and fluorine
Think-Write-Group-Share
How many nitrogen
atoms are in the
compound NF3 ?
Think-Write-Group-Share
How many nitrogen
atoms are in the
compound NF3 ?
 1
N1F3
The number 1 is not written.
Think-Write-Group-Share
How many fluorine atoms
are in the compound
NF3?
Think-Write-Group-Share
How many fluorine atoms
are in the compound
NF3?
 3
N1F3
.
Think-Write-Group-Share
What is true about the
properties of compounds?
 A. They are the same as the
elements that form them.
B. They are different from the
elements that form them.
Think-Write-Group-Share
What is true about the
properties of compounds?
 A. They are the same as the
elements that form them.
B. They are different from the
elements that form them.
Think-Write-Group-Share
What 2 things do chemical
formulas show?
 A. The elements in a compound.
 B. How elements react in a
compound.
 C. The number of atoms of each
element in a compound.
Think-Write-Group-Share
What 2 things do chemical
formulas show?
 A. The elements in a compound.
 B. How elements react in a
compound.
 C. The number of atoms of each
element in a compound.
Think-Write-Group-Share
1 atom of carbon combines with
2 atoms of oxygen to form
 A. 1 molecule of CO.
 B. 1 molecule of CO2.
 C. 2 molecules of CO.
Think-Write-Group-Share
1 atom of carbon combines with
2 atoms of oxygen to form
 A. 1 molecule of CO.
 B. 1 molecule of CO2.
 C. 2 molecules of CO.
Compounds Lecture

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