Question

The chemical change involving iron and hydrochloric acid illustrates a ______ reaction.

Answer 1

The chemical change involving iron and hydrochloric acid illustrates a displacement reaction.

• The single displacement reaction occurs when dilute hydrochloric acid is introduced to iron feelings.
• The iron displaces hydrogen from hydrochloric acid in a single displacement process, resulting in the end product.

$\underset{\mathrm{Hydrochloric}\mathrm{acid}}{2\mathrm{HCl}}+\underset{\mathrm{Iron}}{\mathrm{Fe}}\to \underset{\mathrm{Ferrous}\mathrm{chloride}}{{\mathrm{FeCl}}_2}+\underset{\mathrm{Hydrogen}}{{\mathrm{H}}_2}$

Here, we can see iron is displacing Hydrogen and forming Ferrous chloride.

Hence, the chemical change involving iron and hydrochloric acid illustrates a displacement reaction.