Name the following:
A compound added to lower the fusion temperature of electrolytic bath in the extraction of aluminium.
Write a balanced equation for the following:
The action of dilute hydrochloric acid on sodium sulphide.
Na2S+2HCl -----> 2NaCl +H2S
State your observation in each of the following cases:
When dilute hydrochloric acid is added to sodium carbonate crystal
Write balanced equation for the following:
The action of warm water on magnesium nitride.
State your observation in the following case:
When calcium hydroxide is heated with ammonium chloride crystal.
Write balanced equation for the following:
Action of heat on a mixture of copper and concentrated nitric acid.