What is a base

A base is a substance that can neutralize the acid by reacting with hydrogen ions. Most bases are minerals that react with acids to form water and salts. Bases are defined as proton (H+) acceptors. Common examples of bases include metal oxides and metal hydroxides and ammonium hydroxide.

A base is a substance which reacts with the hydronium ins of the acid to give salt and water. Soluble bases are called alkali

A base is a substance that can neutralize the acid by reacting with hydrogen ions. Most bases are minerals that react with acids to form water and salts. Bases include the oxides, hydroxides and carbonates of metals.