1. The document outlines key concepts and skills students should master in stoichiometry including calculating moles, mass, atoms, and molecules from balanced chemical equations and using these calculations to determine empirical formulas, molecular formulas, theoretical yields, and percent yields. 2. Example problems are provided to assess students' mastery of calculating moles from mass and vice versa, determining mass of products from reactants, calculating percent yields from experimental data, determining empirical and molecular formulas, and using balanced equations to calculate heat released.

2. Engage Whoosh bottle Elephant Toothpaste KI + Pb(NO 3 ) 2 Mg + HCl with balloon and Erlenmeyer