Write their valencies and chemical formula of the following compounds.
a) Zinc carbonate c) Ammonium sulphide
b) Barium chloride d) Sodium nitrate
Chemical formula for above compounds are as follows:
1. ZnCO3
2. (NH4)2S
3. BaCl2
4. NaNO3
1. ZnCO3
2. (NH4)2S
3. BaCl2
4. NaNO3