1. Why is it important that a chemical equation be balanced? 2. What is a mole ratio? How is it used in chemical calculations? 3. Give the steps for solving a typical stoichiometric problem? 4. How many grams of carbon dioxide and grams of water are produced when 66.0 g of C₂H₂ burns in oxygen? 2C₂H₂ +50₂ 5. Balance the equations: Cao+ CaCO3 CO₂ + HCI L 4CO2 + 2H₂O CaCO3 CaCl₂+ CO₂ + __H₂O

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".