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1. What is Stoichiometry? Objectives: 6.0 Solve stoichiometric problems involving relationships among the number of particles, moles, and masses of reactants and products in a chemical reaction 6.3 Identifying the nomenclature of ionic compounds, binary compounds, and acids 6.4 Classifying chemical reactions as composition, decomposition, single replacement, or double replacement Other AOD C.6.1 Define stoichiometry, reactants, and products. Other AOD C.6.2 Explain the law of conservation of mass. Other AOD C.6.3 Explain the concept of mole in terms of Avogadro's number.

2. Stoichiometry • Def.: the quantitative study of relationships between amounts of reactants used and products formed in a chemical reaction • Let’s think for a moment. If I hand you a dozen chocolate chips, can you make a dozen chocolate chip cookies? • Well, every chemical equation is just a recipe!

3. Let’s Review! • Iron + oxygen react to produce iron (III) oxide. • Write AND BALANCE the chemical equation. ANSWER: 4 Fe(s) + 3O2(g)→ 2Fe2O3(s) • What type of reaction is this? • How many moles of each compound are represented? • How many grams of each compound are represented?

4. Review, continued….. • Aluminum + bromine react to produce aluminum bromide • Write AND BALANCE the chemical equation. ANSWER: 2Al(s) + 3Br2(l)→ 2AlBr3(s) • What type of reaction is this? • How many moles of each compound are represented? • How many grams of each compound are represented?