Write an unbalanced equation to represent each of thefollowing reactions: (a) nitrogen and oxygen react toform nitrogen dioxide, (b) dinitrogen pentoxide reacts toform dinitrogen tetroxide and oxygen, (c) ozone reactsto form oxygen, (d) chlorine and sodium iodide react toform iodine and sodium chloride, and (e) magnesiumand oxygen react to form magnesium oxide. (f ) Balanceequations (a)–(e).

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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".