# Is a reaction with a base to form water physical or chemical change?

Nov 6, 2016

Chemical

#### Explanation:

A chemical change is any change that results in the formation of new chemical substances. A reaction with a base forms a new substance, water. For example, in: $N a O {H}_{\text{(aq)" + HCl_"(aq)" rarr H_2O_"(l)" + NaCl_"(aq)}}$
a chemical change occurs to produce water.