Write the word equation for the following reactions.

Hydrogen combines with chlorine to form hydrogen chloride.

Write skeletal equations for the following word equations.

$\mathrm{Hydrogen}+\mathrm{Chlorine}\to \mathrm{Hydrogen}\mathrm{chloride}$

Write word equation for the following reaction:

Reaction ammonia gas with hydrogen chloride gas.

Write the balanced equation for the following chemical reactions.

(i) Hydrogen + Chlorine → Hydrogen chloride

(ii) Barium chloride + Aluminium sulphate → Barium sulphate +

Aluminium chloride

(iii) Sodium + Water → Sodium hydroxide + Hydrogen

Illustrate Gay-Lussac's Law of combining volumes by referring to the reaction between :

(d) hydrogen and chlorine to form hydrogen chloride