# Is hydrochloric acid a strong or weak acid?

Feb 8, 2017

#### Answer:

Because it ionizes completely on dissolving in water, HCl is a strong acid.

#### Explanation:

Very soon after dissolving a quantity of HCl gas into water, ionization of the molecules into ${H}^{+}$ ions and $C {l}^{-}$ ions, with no HCl molecules remaining.

This, by definition makes it a strong acid.