Building molecules
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The document outlines a chemistry lesson plan focused on building molecules, naming ionic and covalent compounds, and associated homework tasks. Students are to utilize a simulation tool and textbook resources to complete quizzes and practice problems, emphasizing both independent and collaborative learning. Instruction includes examples of naming compounds and identifying chemical formulas.
Building molecules
- 1. Building Molecules CHEMISTRY MRS. GALL INKSTER HIGH SCHOOL
- 2. Today’s Lesson Steps Silent Do Now (Label Paper with today’s problems listed on the board) Discuss Do Now Discuss Today’s Expectations Frontal Teaching: Build A Molecule: Simulation Quiz Naming Ionic and Covalent/ Molecular Compounds Individual and Small Group Practice Homework
- 3. Build A Molecule: Simulation Quiz 1. Load the simulator 2. Run the simulation 3. Open the ―Collect Multiple‖ screen 4. Complete the 4- part quiz 5. Show Mrs. Gall (or chosen student assistant) to earn credit
- 4. www.phet.colorado.edu OR… www.google.com Phet colorado chemistry simulation
- 6. Lab Credit: Due Today Complete all four of the ―Molecule Collection‖ Tasks on the right side of the screen for 4 points credit: LAB. Due in class today. You must reset the section before allowing another student to complete the tasks. You must complete the tasks on your own, but you may have guidance from other informed people.
- 7. ―Tech Tuesday‖: 12 problems Page 183 #19 a b c d : Name the compounds Page 184 #20 a b c d: Write formulas Page 207 #9 a b c d: Name the compounds Holt Chemistry textbook (black cover, heated test tube graphic on front)
- 8. Online Resources for naming compounds http://misterguch.brinkster.net/ionic.html http://misterguch.brinkster.net/covalentcompounds .html http://chemistry.about.com/od/nomenclature/a/no menclature-ionic-compounds.htm http://chemistry.about.com/od/nomenclature/a/co valent-compound-nomenclature.htm OF COURSE, YOU CAN ―GOOGLE IT‖: NAMING IONIC COMPOUNDS NAMING COVALENT COMPOUNDS
- 9. Rationale: Why are we ―skipping around‖ in the book? 1. We are working on both types of compounds at once, because I’ve found that it is more useful. 2. We are naming compounds before we discuss the ways and reasons things bond because: A. We’ve already covered those concepts; the review may feel boring B. Knowing you can ―do this‖- the ―plug and chug‖ sort of just‖ go through a process‖ tasks- you gain confidence, experience, and knowledge. The reasons make more sense when you know what you’re expected to do.
- 10. Textbook Resources: Chapters 5 and 6 Chapter 5, section 3: pages 176 – 180 Chapter 6, section 2: pages 206 – 207
- 11. Naming ionic compounds Pg.183 #19 A. Cu3(PO4)2 Look at page 178. PO4 is PHOSPHATE. It has a -3 charge. Cu is copper. It is on the Periodic Table! Since the molecule has 2 phosphates, we have a -6 charge there. The copper must have a total charge of +6 to make a neutral molecule. Since there are 3 of these, each one carries a +2 charge. Name it: copper (II) phospate
- 12. #19 a: Name the ionic compound Cu3(PO4)2
- 13. #19 a: Name the ionic compound Cu3(PO4)2
- 14. #19 a: Name the ionic compound Cu3(PO4)2
- 15. #19 b
- 16. #19 b: Name the ionic compound Fe(NO3)3 This compound contains Fe, Iron. All metals are capable of carrying different amounts of charge, so, again, we will need to determine the amount of charge on each of these iron atoms and include that in the name of the molecule. The molecule name is partly: iron(?) --?— Let’s check page 178 for the name for NO3
- 17. #19 b: Name the ionic compound Fe(NO3)3 19B. Fe(NO3)3 iron (III) nitrate
- 18. #19 b: Name the ionic compound Fe(NO3)3 Naming it. Fe is IRON Its charge is +3 NO3 is NITRATE No need to show its charge. Iron (III) nitrate
- 19. #19 b: Name the ionic compound Fe(NO3)3
- 20. #19 b: Name the ionic compound Fe(NO3)3
- 21. #19 b: Name the ionic compound Fe(NO3)3
- 22. 19. c. Name the compound: Cu2O Cu is copper. There are 2 of them. How do I know? There is 1 oxygen atom. How do I know? Oxygen is born with 6 valence electrons. It ―wants‖ to steal 2 in order to have a full octet. It will steal 2 electrons and have a -2 charge. Two coppers and One (-2) charged Oxygen… Each copper must be +1. Copper (I) oxide
- 23. 19. d. Name the compound: CuO Cu is copper. There is 1 of them. How do I know? There is 1 oxygen atom. How do I know? Oxygen is born with 6 valence electrons. It ―wants‖ to steal 2 in order to have a full octet. It will steal 2 electrons and have a -2 charge. One copper atom and One (-2) charged Oxygen atom… The copper atom must have a +2 charge. Copper (II) oxide
- 24. 20.a. Give the chemical formula for: lithium sulfate Lithium has the symbol Li. Found in column one, it is ―born‖ with 1 valence electron. It will lose this one electron to become more stable (its outer shell will be the full shell below that one); its charge will be +1 as a result. Sulfate is found on page 178. Its formula is SO4 . It carries a -2 charge. In order to create a NEUTRAL molecule, we will combine TWO lithium atoms with ONE sulfate ion. Li2SO4
- 25. 20a. Lithium sulfate Lithium is Li Sulfate is (see page 178) SO4 (-2) Li SO4
- 26. 20.b. Give the chemical formula for: strontium nitrate Strontium has the symbol Sr. Found in column two, it is ―born‖ with 2 valence electrons. It will lose those two electrons to become more stable (its outer shell we be the full shell below those two); its charge will be +2 as a result. Nitrate is found on page 178. Its formula is NO3 . It carries a -1 charge. In order to create a NEUTRAL molecule, we will combine ONE strontium atom with TWO nitrate ions. Sr(NO3)2
- 27. 20.b. strontium nitrate Sr NO3
- 28. 20.c. Give the chemical formula for: ammonium acetate Ammonium is NH4; see page 178 for the formula. It carries a +1 charge. Acetate is C2H3O2; see page 178 for the formula. It carries a -1 charge. +1 (ammonium) and -1 (acetate) can bond to form one NEUTRAL ammonium acetate molecule NH4C2H3O2
- 29. 20.d. Give the chemical formula for: titanium (III) sulfate In our science lab, we can combine a LOT of Titanium ions and a LOT of Sulfate ions in one big beaker.
- 30. 20.d. Give the chemical formula for: titanium (III) sulfate titanium (III) sulfate Titanium is Ti and carries a +3 charge. We know it has a +3 charge, because the (III) shows that.
- 31. 20.d. Give the chemical formula for: titanium (III) sulfate titanium (III) sulfate Sulfate is found on page 178. Its formula is SO4 . It carries a -2 charge.
- 32. 20.d. Give the chemical formula for: titanium (III) sulfate Ions with a 3+ charge and ions with a 2- charge can be combined into NEUTRAL groups. To make a neutral titanium (III) sulfate molecule, we will combine TWO Ti3+ ions and THREE SO4 2- ions.
- 33. 20.d. Give the chemical formula for: titanium (III) sulfate Titanium is Ti and carries a +3 charge. We know it has a +3 charge, because the (III) shows that. Sulfate is found on page 178. Its formula is SO4 . It carries a -2 charge. In order to create a NEUTRAL molecule, we will combine TWO titanium atoms with THREE sulfate ions. Ti2(SO4)3
- 34. Page 207: #9abcd 9a. SnI4: tin tetraiodide 9b. N2O3: dinitrogen trioxide 9c. PCl3: phosphorus trichloride 9d. CSe2: carbon diselenide