Question

Complete the following equation:

${\mathrm{CuSO}}_4+{\mathrm{H}}_2\mathrm{S}\stackrel{}{\to }-----$

Answer 1

Reaction of copper sulphate with hydrogen sulphide:

• When copper sulphate$\left({\mathrm{CuSO}}_4\right)$ reacts with hydrogen sulphide$\left({\mathrm{H}}_2\mathrm{S}\right)$, it forms copper sulphide$\left(\mathrm{CuS}\right)$ and sulphuric acid$\left({\mathrm{H}}_2{\mathrm{SO}}_4\right)$.
• $\underset{\mathrm{Copper}\mathrm{sulphate}}{{\mathrm{CuSO}}_4\left(\mathrm{s}\right)}+\underset{\mathrm{Hydrogen}\mathrm{sulphide}}{{\mathrm{H}}_2\mathrm{S}\left(\mathrm{g}\right)}\stackrel{}{\to }\underset{\mathrm{Copper}\mathrm{sulphide}}{\mathrm{CuS}\left(\mathrm{s}\right)}+\underset{\mathrm{Sulphuric}\mathrm{acid}}{{\mathrm{H}}_2{\mathrm{SO}}_4\left(\mathrm{aq}\right)}$