This chemistry unit covers stoichiometry. Students will first learn that the coefficients in balanced chemical equations also represent mole ratios. Next, students will learn to calculate product and reactant quantities using mole ratios, molar mass, Avogadro’s number, density, and SI units. Finally, students will learn to identify limiting reactants and calculate percent yield. At the end of the chapter students will complete a lab where they will calculate theoretical yield, perform a reaction, and then calculate percent yield.

Content has sufficient stretch to be a meaningful challenge most high school students. This unit is based around PowerPoint lecture slides that have been beautifully animated and contain speaker notes to guide you through each slide's content. The PowerPoint lecture notes also serve as a teaching/planning guide. The slides indicate at what point included activities should be completed. These activities include practice calculation assignments, a quiz, a review, a test modeled after the review, and the summative lab activity. Answer keys are typed and show step-by-step work for calculations. It is intended that students have access to practice assignment keys while working, however this access is optional. Learning objectives for this unit are listed below.

For more teaching materials on related chemistry topics other units are available and the entire year-long course "The Complete Chemistry Course" is available as a bundle.

Chemical Equations and Reactions Learning Objectives:

1. Determine mole ratios from a balanced chemical equation.

2. Solve stoichiometry problems.

3. Identify the limiting reactant and calculate theoretical and percent yield.

4. Explain actual yield and calculate percent yield