Chapter12 Section01 Edit

The Arithmetic of Equations More than 3000 cocoons are needed to produce enough silk to make just one elegant Japanese kimono. Like silk manufacturers, chemists must know how much reactant they need to make a certain amount of product. Determining the quantities of reactants and products in a reaction requires a balanced chemical equation. 12.1

Using Everyday Equations Using Everyday Equations How is a balanced equation like a recipe? 12.1

Using Everyday Equations A balanced chemical equation provides the same kind of quantitative information that a recipe does. 12.1

Using Everyday Equations An equation can represent the manufacturing of a single tricycle. 12.1

Using Balanced Chemical Equations Using Balanced Chemical Equations How do chemists use balanced chemical equations? 12.1

Using Balanced Chemical Equations Chemists use balanced chemical equations as a basis to calculate how much reactant is needed or product is formed in a reaction. The calculation of quantities in chemical reactions is a subject of chemistry called stoichiometry . 12.1

for Sample Problem 12.1 Problem Solving 12.1 Solve Problem 1 with the help of an interactive guided tutorial.

Interpreting Chemical Equations Interpreting Chemical Equations In terms of what quantities can you interpret a balanced chemical equation? 12.1

Interpreting Chemical Equations A balanced chemical equation can be interpreted in terms of different quantities, including numbers of atoms, molecules, or moles; mass; and volume. 12.1

Interpreting Chemical Equations Number of Atoms 12.1

Interpreting Chemical Equations Number of Molecules 12.1

Interpreting Chemical Equations Moles 12.1

Interpreting Chemical Equations Mass 12.1

Interpreting Chemical Equations Volume 12.1

Interpreting Chemical Equations 12.1

Mass Conservation in Chemical Reactions Mass Conservation in Chemical Reactions What quantities are conserved in every chemical reaction? 12.1

Mass Conservation in Chemical Reactions Mass and atoms are conserved in every chemical reaction. 12.1

for Conceptual Problem 12.1 Problem Solving 12.4 Solve Problem 4 with the help of an interactive guided tutorial.

12.1 Section Quiz. 1. A manufacturer of bicycles has 5350 wheels, 3023 frames, and 2655 handlebars. How many bicycles can be manufactured using these parts? 2675 bicycles 2655 bicycles 3023 bicycles 5350 bicycles

2. A reaction that produces iron metal from iron ore is shown below. Fe 2 O 3 •H 2 O( s ) + 3CO( g )  2Fe( s ) + 3CO 2 ( g ) + H 2 O( g ) In this equation, the volume of gas at STP that reacts and the volume of gas at STP produced will be 3 L and 4 L. 67.2 L and 89.6 L. 67.2 L and 67.2 L 3 L and 3 L 12.1 Section Quiz.

3. What is conserved in the reaction shown below? H 2 ( g ) + Cl 2 ( g )  2HCl( g ) only mass only mass and number of moles only mass, number of moles, and number of molecules mass, number of moles, number of molecules, and volume 12.1 Section Quiz.

Chapter12 Section01 Edit

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Chapter12 Section01 Edit