1 B) gram C) 2 grams D) 4 grams None of the E) above Explanation: 2 grams of reactants would be consumed by the chemical reaction. The mass of the reactants equals the mass of the products. This is the Law of Conservation of Matter. However much is reacted must be produced. 17) A + B + C D + E → Describe the mass of the reactants and products given the balanced chemical reaction. The mass of the products is 2/3 that of the A) reactants. The mass of the reactants equals the mass of B) the products. The mass of the reactants is less than the mass of C) the products. The mass of the reactants is greater than the mass of D) the products. None of the E) above Explanation: The mass of the reactants equals the mass of the products. This is the Law of Conservation of Matter. Do not be fooled by the larger numbers of reactants. 18) 4Fe + 3O2 2Fe2O3 → Iron combines with oxygen to form rust. Given the chemical reaction, how many grams of 4Fe + 3O2 would produce 10 kg of rust? 7 A) kg 10 B) kg
B) 1 gram C) 2 grams D) 4 grams E) None of the above Explanation: 2 grams of reactants would be consumed by the chemical reaction. The mass of the reactants equals the mass of the products. This is the Law of Conservation of Matter. However much is reacted must be produced. 17) A + B + C → D + E Describe the mass of the reactants and products given the balanced chemical reaction. A) The mass of the products is 2/3 that of the reactants. B) The mass of the reactants equals the mass of the products. C) The mass of the reactants is less than the mass of the products. D) The mass of the reactants is greater than the mass of the products. E) None of the above Explanation: The mass of the reactants equals the mass of the products. This is the Law of Conservation of Matter. Do not be fooled by the larger numbers of reactants. 18) 4Fe + 3O2 → 2Fe2O3 Iron combines with oxygen to form rust. Given the chemical reaction, how many grams of 4Fe + 3O2 would produce 10 kg of rust? A) 7 kg B) 10 kg