1) Magnesium reacts with hydrochloric acid according to one of the following equations: Mg (s) + HCI (aq) MgCl (aq) + H2 (g) Mg (s) + HCI (aq) M9CI2 (aq) + H2 (g) When the correct equation is balanced, the sum of the four coefficients is a) 7 b) 5 c) 8 d) 6

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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".