Question

Give the balanced chemical equation. Action of warm water on magnesium nitride.

Answer 1

1. This reaction is used to prove that air contains nitrogen.
   In this reaction, magnesium nitride $\left({\mathrm{Mg}}_3{\mathrm{N}}_2\right)$ reacts with water and forms a white precipitate, magnesium hydroxide $\left(\mathrm{Mg}{\left(\mathrm{OH}\right)}_2\right)$ and ammonia gas.

Therefore, the balanced chemical equation can be written as:
${\mathrm{Mg}}_3{\mathrm{N}}_2\left(\mathrm{s}\right)+6{\mathrm{H}}_2\mathrm{O}\left(\mathrm{aq}\right)\to 3\mathrm{Mg}{\left(\mathrm{OH}\right)}_2\left(\mathrm{aq}\right)+2{\mathrm{NH}}_3\left(\mathrm{g}\right)$