Write an equation for the following reaction:

(d) Iron reacts with steam

The reaction of iron with steam:

• When a metal reacts with steam then the products formed are metal oxide and hydrogen gas.
• $\mathrm{Metal}+\mathrm{Steam}\to \mathrm{Metal}\mathrm{oxide}+\mathrm{Hydrogen}\mathrm{gas}$
• When iron($\mathrm{Fe}$) reacts with steam(${\mathrm{H}}_2\mathrm{O}\left(\mathrm{g}\right)$), it forms iron oxide(${\mathrm{Fe}}_3{\mathrm{O}}_4$) along with hydrogen gas.
• $\underset{\mathrm{Iron}}{3\mathrm{Fe}\left(\mathrm{s}\right)}+\underset{\mathrm{Water}}{4{\mathrm{H}}_2\mathrm{O}\left(\mathrm{g}\right)}\to \underset{\mathrm{Ferric}\mathrm{Oxide}}{{\mathrm{Fe}}_3{\mathrm{O}}_4\left(\mathrm{s}\right)}+\underset{\mathrm{Hydrogen}\mathrm{gas}}{4{\mathrm{H}}_2\left(\mathrm{g}\right)}$