Metal oxides and alkalis are two types of base. Basic substances neutralise acids, resulting in the pH of the acid increasing towards 7, and water being produced. A soluble base dissolves in water ...

Carbon dioxide reacts with water to produce carbonic acid. The double arrow means that carbonic acid breaks down pretty readily to form carbon dioxide and water again. A hydrogen atom from the ...

A salt and water are always produced as a result of these reactions. Metal oxides and alkalis are two types of base. Basic substances neutralise acids, resulting in the pH of the acid increasing ...