Question

Write the correctly balanced equation for each of the reaction-

1. Ammonium chloride is a soluble salt prepared by neutralisation.
2. When ammonium chloride is heated, it undergoes thermal dissociation.
3. Heating ammonium chloride with sodium hydroxide produces ammonia.
4. Heating a solution of ammonium chloride and sodium nitrite produces nitrogen.

Answer 1

The chemical equation can be written as :

1.$$\begin{gathered} {\mathrm{NH}}_4{\left(\mathrm{OH}\right)}_2\left(\mathrm{s}\right)\left(\mathrm{base}\right)+\mathrm{HCl}\left(\mathrm{l}\right)\left(\mathrm{acid}\right)\to {\mathrm{NH}}_4\mathrm{Cl}\left(\mathrm{s}\right)+{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right) \\ (\mathrm{Ammonium}(\mathrm{Hydrochloric}(\mathrm{Ammonium}(\mathrm{water}\left) \\ \mathrm{hydroxide}\right)\mathrm{acid})\mathrm{chloride}) \end{gathered}$$

2.$$\begin{gathered} {\mathrm{NH}}_4\mathrm{Cl}\left(\mathrm{s}\right)\stackrel{∆}{\rightleftharpoons }{\mathrm{NH}}_3\left(\mathrm{g}\right)+\mathrm{HCl}\left(\mathrm{l}\right) \\ (\mathrm{Ammonium}(\mathrm{Ammonia})(\mathrm{Hydrochloric} \\ \mathrm{chloride})\mathrm{acid}) \end{gathered}$$

3.$$\begin{gathered} {\mathrm{NH}}_4\mathrm{Cl}\left(\mathrm{s}\right)+\mathrm{NaOH}\left(\mathrm{s}\right)\stackrel{∆}{\to }{\mathrm{NH}}_3\left(\mathrm{g}\right)+{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)+\mathrm{NaCl}\left(\mathrm{s}\right) \\ (\mathrm{Ammonium}(\mathrm{sodium}\left(\mathrm{ammonia}\right)\left(\mathrm{water}\right)\left(\mathrm{sodium} \\ \mathrm{chloride}\right)\mathrm{hydroxide}\mathrm{chloride}) \end{gathered}$$

4. $$\begin{gathered} {\mathrm{NH}}_4\mathrm{Cl}\left(\mathrm{s}\right)+{\mathrm{NaNO}}_2\left(\mathrm{s}\right)\to {\mathrm{N}}_2\left(\mathrm{g}\right)+2{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)+\mathrm{NaCl}\left(\mathrm{s}\right) \\ (\mathrm{ammonium}(\mathrm{sodium}\left(\mathrm{nitrogen}\right)\left(\mathrm{water}\right)\left(\mathrm{sodium} \\ \mathrm{chloride}\right)\mathrm{nitrite})\mathrm{chloride}) \end{gathered}$$