Question

The appearance of salt and sulphur mixture

Answer 1

Explanation:

sodium sulphide is formed that is usually unstable

Answer 2

Explanation:

Sand is insoluble in both.When sand, common salt and sulphur is added to water and stirred vigorously,common salt will dissolve in water but others will not. The solution is then filtered using a filter paper. Filterate containing common salt is subjected to evaporation to obtain salt