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Stoichiometry Answer Key Complete Solution TOP RATED
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Stoichiometry Answer Key Complete Solution TOP RATED Stoichiometry Answer Key Complete Solution TOP RATED Stoichiometry Answer Key Complete Solution TOP RATED Stoichiometry Answer Key Complete Solution TOP RATED

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  • March 25, 2022
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  • 2021/2022
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Stoichiometry Answer Key Vocabulary : Avogadro’s number, balanced equation, cancel, coefficient, dimensional analysis, molar mass, mole, molecular mass, stoichiometry Prior Knowledge Questions (Do these BEFORE using the Gizmo .) [Note: The purpose of these questions is to activate prior knowledge and get students thinking. Students are not expected to know the answers to the Prior Knowledge Questions.] 1. A 250 mL glass of orange juice contains 22 grams of sugar. How much sugar is in a two-liter (2,000 mL) bottle of orange juice? 176 grams of sugar 2. It requires two sticks of butter to make a batch of 20 cookies. How much butter will it take to make 150 cookies? 15 sticks of butter Gizmo Warm -up Just as a cook follows a recipe to decide how much of each ingredient to add, a chemist uses stoichiometry to determine the amounts of substances involved in chemical reactions. The Stoichiometry Gizmo™ allows you to try your hand at figuring out the amounts of reactants and products that take part in a chemical reaction. To begin, check that this equation is shown: Fe2O3 + 3CO 2Fe + 3CO 2 1. Look at the coefficients (such as the “3” in 3CO) in front of each substance in the equation. The coefficients tell you how many molecules or atoms take part in a chemical reaction. In the spaces below, list the number of each molecule or atom in the equation: Fe2O3 1 CO 3 Fe 2 CO 2 3 2. In a balanced equation , the same number of each kind of atom is shown on each side of the equation. Calculate the number of iron (Fe), oxygen (O), and carbon atoms (C). Reactants Iron: 2 Oxygen: 6 Carbon: 3 Products Iron: 2 Oxygen: 6 Carbon: 3 Based on these values, is the equation balanced? Yes

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