Question

Write the chemical formula of the following
compounds (use criss-cross method):
1. Aluminium oxide
2. Sodium chloride
3. Magnesium sulphate
4. Ammonium sulphate
5. Zinc carbonate
6. Potassium bisulphite
7. Calcium bicarbonate
8. Aluminium nitride
9. Cuprous chloride
10. Ferric sulphate
11. Manganese (IV) oxide
12. Lead (1) hydroxide
13. Silver bromide
14. Silver nitrate
15. Ammonium nitrate​

Answer 1

Answer:

(a) Magnesium chloride = MgCl

2

(b) Calcium oxide = CaO

(c) Copper nitrate = Cu(NO

3

)

2

(d) Aluminium chloride = AlCl

3

(e) Calcium carbonate = CaCO

3