A reaction between an acid and a base is?

Answer 1

It is called an acid-base reaction. The product is called a salt.

For example:

NaOH + HCl -> NaCl + H2O

NaOH is the base.

HCl is the acid.

NaCl is the salt.

H2O is water.

Answer 2

A reaction between an acid and a base is called neutralization. In this reaction, the acid donates a proton (H+) to the base, forming water and a salt. The pH of the solution becomes closer to neutral (pH 7) after the reaction is complete.