Many explosives have the general formula CwHxNyOz where w, x, y, and z are subscripts. These explosives decompose according to the equation: CwHxNyOz --> w CO2 + x/2 H2O + y/2 N2 Which equation allows the subscript z (the number of oxygen atoms) to be calculated?

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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".