Question

Write the chemical equation for the following reactions:

• Reaction of iron with steam

Answer 1

Chemical equation-It is the symbolic representation of a chemical reaction in the form of symbols and formulae.

Reaction:-

Iron reacts with steam to form iron oxide and hydrogen.

$\underset{\mathrm{Iron}}{3\mathrm{Fe}\left(\mathrm{s}\right)}+\underset{\mathrm{water}}{4{\mathrm{H}}_2\mathrm{O}\left(\mathrm{g}\right)}\to \underset{\mathrm{Iron}\mathrm{oxide}}{{\mathrm{Fe}}_3{\mathrm{O}}_4\left(\mathrm{s}\right)}+\underset{\mathrm{hydrogen}}{4{\mathrm{H}}_2\uparrow }$

It is a displacement reaction. In this type of reaction, one element which is more reactive displaces the other element which is less reactive.