Weba. i. Answer. Magnesium reacts with dilute hydrochloric acid to form magnesium chloride and hydrogen gas. Mg (s)+2HCl (aq)→MgCl2 (aq)+H2 (g) Answer. Mg (s) + 2 H+ (aq) + 2 Cl− (aq) ——> MgCl2 (aq) + H2 (g) Answer. Oxidation is the loss of electrons or an increase in oxidation state by a molecule, atom, or ion.

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