Combustion of methane produces carbon dioxide and water. This happens in most landfills. If 100 grams of CH4 is made to react with 200 grams of O2, which is the limiting reactant? Which is the excess reactant?

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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".