Question

Exercise 1
Write the chemical formula of the following compounds:
Formula
1. Aluminium sulphide
2. Magnesium oxide
3. Hydrogen carbonate
4. Sodium chlorate
5. Copper (II) nitrate
6. Aluminium phosphate
7. Magnesium nitride
8. Potassium bicarbonate
9. Silver bromide
10. Copper (I) chloride
11. Zinc sulphite
12. Lead (II) nitrate
13. Manganese (IV) oxide
14. Potassium bisulphite
15. Zinc carbonate
16. Lead (II) hydroxide
17. Mercury (II) chloride
18. Aluminium nitride
19. Calcium bicarbonate
20. Ammonium dichromate​

Answer 1

1. Al₂S₃

2. MgO

3. HCO₃-

4. NaClO₃

5. Cu(NO₃)₂

6. AlPO4

7. Mg3N2

8. KHCO3

9. AgBr

10. CuCl

11. ZnS

12. Pb(NO3)2

13. MnO2

14. KHSO3

15. ZnCO3

16. Pb(OH)2

17. HgCl2

18. AlN

19. Ca(HCO3)2

20. (NH4)2Cr2O7