The reaction between an acid and a base to give a salt and water is known as neutralization reaction. That is:

Acid + Base → Salt + Water

For example:

(i) Sodium hydroxide (NaOH) reacts with hydrochloric acid (HCl) to form sodium chloride (NaCl) and water:

(ii) Magnesium hydroxide reacts with hydrochloric acid to form magnesium chloride and water: