Question

Give equations of the reaction between hydrochloric acid and

(a) sodium oxide

Answer 1

Hydrochloric acid $\left(\mathrm{HCl}\right)$ is a mono-basic acid. A mono-basic acid is a substance that produces only one hydrogen ion per molecule of the acid when completely dissociated in water.

When metal oxides react with acids, salt and water are produced.

A colorless aqueous solution of Sodium Chloride $\left(\mathrm{NaCl}\right)$ salt and water$\left({\mathrm{H}}_2\mathrm{O}\right)$ are formed when Hydrochloric acid $\left(\mathrm{HCl}\right)$ reacts with Sodium oxide $\left({\mathrm{Na}}_2\mathrm{O}\right)$.

The reaction equation is as follows:

$2\mathrm{HCl}\left(\mathrm{aq}\right)+{\mathrm{Na}}_2\mathrm{O}\left(\mathrm{s}\right)\to 2\mathrm{NaCl}\left(\mathrm{aq}\right)+{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)$