Question

Write the correctly balanced equation in the following case:

When steam is passed over a red hot iron.

Answer 1

Balance equation:

• A balanced chemical equation has the same number of atoms on the reactant and product sides for each element involved in the reaction.
• When steam is passed over red-hot iron, the iron oxide (${\mathrm{Fe}}_3{\mathrm{O}}_4$) will be formed with the release of hydrogen gas.

The balanced equation is:

$$\begin{gathered} 3{\mathrm{Fe}}_{\left(\mathrm{s}\right)}+4{\mathrm{H}}_2\mathrm{O}\to {\mathrm{Fe}}_3{{\mathrm{O}}_4}_{\left(\mathrm{s}\right)}+4{\mathrm{H}}_{2\left(\mathrm{g}\right)}\uparrow \\ \mathrm{Iron}\mathrm{Steam}\mathrm{Iron}\mathrm{oxide}\mathrm{Hydrogen} \end{gathered}$$