Iron(III) oxide reacts with carbon monoxide according to the equation Fe203(s)+3C0(g)->2Fe(s)+3C02(g) A reaction mixture initially contains 22.45g Fe203 and 14.009CO. Once the reaction has occurred as completely as possible, what mass of the excess reactant is left?

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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".