Question

Write the equation for the following reaction:
Magnesium sulphate solution is mixed with barium chloride solution.

Answer 1

Magnesium sulphate solution when mixed with barium chloride solution undergoes double displacement reaction to form magnesium chloride and a white precipitate of barium sulphate.

$$\begin{gathered} {\mathrm{MgSO}}_4+{\mathrm{BaCl}}_2\to {\mathrm{MgCl}}_2+{\mathrm{BaSO}}_4 \\ \mathrm{Barium}\mathrm{sulphate} \\ (\mathrm{White}\mathrm{ppt}) \end{gathered}$$

Note: Double decomposition reactions are basically double displacement reactions.