In the balanced equation, what is the mole ratio comparing iron (Fe) and oxygen gas (0₂)? 4Fe(s) + 302(g) → 2Fe2O3(s) A. B. 4 moles Fe 2 mole O₂ 1 moles Fe 3 mole O₂ 2 moles Fe 3 moles O₂ 4 mole Fe 3 moles O₂

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A: Oxidation number

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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".