Question

Complete and balance the following equations giving the conditions necessary for the reactions :

${\mathrm{NH}}_4\mathrm{Cl}\left(\mathrm{s}\right)\stackrel{}{\rightleftharpoons }\mathrm{\_\_\_\_\_\_\_\_}+\mathrm{\_\_\_\_\_\_\_}$

Answer 1

Action of heat on ammonium chloride (${\mathrm{NH}}_4\mathrm{Cl}$):

• When solid ammonium chloride (${\mathrm{NH}}_4\mathrm{Cl}$) is heated, undergoes thermal decomposition resulting in the formation of ammonia (${\mathrm{NH}}_3$) and hydrogen chloride($\mathrm{HCl}$) gas.
• $\underset{\mathrm{ammonium}\mathrm{chloride}}{{\mathrm{NH}}_4\mathrm{Cl}\left(\mathrm{s}\right)}\stackrel{\mathrm{heat}}{\rightleftharpoons }\underset{\mathrm{ammonia}}{{\mathrm{NH}}_3(\mathrm{g}})+\underset{\mathrm{hydrochloric}\mathrm{acid}}{\mathrm{HCl}\left(\mathrm{g}\right)}$