Question

_______________________ oxides react with bases to form salt and water.

Answer 1

Definition

• An acidic oxide is an oxide that either produces an acidic solution upon addition to water or acts as an acceptor of Hydroxide ions.
• Acidic oxides react with bases to produce salts and water.

Example: Carbon dioxide(${\mathrm{CO}}_2$) is an acidic oxide that reacts with base Sodium hydroxide($\mathrm{NaOH}$) to form the salt Sodium carbonate (${\mathrm{Na}}_2{\mathrm{CO}}_3$) and water(${\mathrm{H}}_2\mathrm{O}$).

Chemical equation: $\underset{\mathrm{Carbon}\mathrm{dioxide}}{{\mathrm{CO}}_2\left(\mathrm{g}\right)}+\underset{\mathrm{Sodium}\mathrm{hydroxide}}{2\mathrm{NaOH}\left(\mathrm{s}\right)}\to \underset{\mathrm{Sodium}\mathrm{carboante}}{{\mathrm{Na}}_2{\mathrm{CO}}_3\left(\mathrm{aq}\right)}+\underset{\mathrm{Water}}{{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)}$

Therefore, acidic oxides react with bases to form salt and water.