You enter a laboratory after a class has completed the Fountain Experiment. How will you be able to tell whether the gas used in the experiment was hydrogen chloride or ammonia.

With reference to Haber’s process, write the equation and the conditions required.

Ammonia can be obtained by adding water to : [Select the correct word]

1. Ammonium chloride
2. Ammonium nitrite
3. Magnesium nitride
4. Magnesium nitrate

Give an equation for formation of ammonium sulphate from ammonia and dilute sulphuric acid.