Question

How can the following be converted into the respective chlorides?

(b) Copper oxide.

Give the balanced chemical equation.

Answer 1

Reaction of metal oxide and acid:

• A salt and water are produced when an acid undergoes a chemical reaction with a metal oxide.
• When copper oxide $\left(\mathrm{CuO}\right)$ react with hydrochloric acid $\left(\mathrm{HCl}\right)$, it produces copper chloride $\left({\mathrm{CuCl}}_2\right)$ and water $\left({\mathrm{H}}_2\mathrm{O}\right)$.

Chemical reaction:

• The chemical equation is as follows:

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