Calcium carbonate decomposes to form calcium oxide and carbon dioxide, like this: CaCO3(s)→ CaO(s) + CO₂(g) At a certain temperature, a chemist finds that a 9.1 L reaction vessel containing a mixture of calcium carbonate, calcium oxide, and carbon dioxide at equilibrium has the following composition: amount 64.3 g 7.3 g compound CaCO3 CaO

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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".