Write the balanced equation for the following chemical reactions.
(i) Hydrogen + Chlorine `rarr` Hydrogen chloride
(ii) Barium chloride + Aluminium sulphate `rarr` Barium sulphate + Aluminium chloride
(iii) Sodium + Water `rarr` Sodium hydroxide + Hydrogen

Explanation

To write the balanced equations for the given chemical reactions, we will follow these steps:

### (i) Hydrogen + Chlorine → Hydrogen Chloride

1. **Write the unbalanced equation:**
\[ \text{H}_2 + \text{Cl}_2 \rightarrow \text{HCl} \]
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