Neutralization Reactions
(Double Replacement Acid-Base Reactions)
HX + MOH ---> HOH + MX

Reactants: Acid + hydroxide base
Products: Ionic compound (salt) + H2O
Examples:
HCl(aq) + NaOH(aq) ---> NaCl(aq) + H2O(l)
2 HCl(aq) + Ca(OH)2(s) ---> CaCl2(aq) + 2 H2O(l)
(Note: The salts above that are not solids all exist as ions in solution.)