Question

Briefly describe how water reacts with iron powder stating the experimental condition and write the balanced chemical equations.

Answer 1

• Iron metal reacting with water leads to the formation of iron(III) oxide and also the liberation of hydrogen gas takes place, the reaction takes place for a long duration.
• The formation of iron oxide from iron and water is called rusting of iron.
• The brown colour layer forms on the iron is iron oxide.
• The chemical equation for the reaction between iron and water is:
• $\underset{\mathrm{Iron}}{\underset{}{3\mathrm{Fe}\left(\mathrm{s}\right)}}+4{\mathrm{H}}_2\mathrm{O}\left(\mathrm{g}\right)\to \underset{\mathrm{iron}\mathrm{oxide}}{\underset{}{{\mathrm{Fe}}_3{\mathrm{O}}_4}}\left(\mathrm{s}\right)+\underset{\mathrm{hydrogen}\mathrm{gas}}{\underset{}{4{\mathrm{H}}_2\left(\mathrm{g}\right)}}$