Name each of the following binary compounds or ionic compounds with polyatomic ions: 1. LiBr 2. Cal2 3. Al203 4. Mg3N2 5. FeCl2 6. FeCl3 7. Cu3N2 8. Ni2O3 9. Al(SO4)3 10. Ca3(PO4)2 11. Fe(OH)2 12. (NH4)2S 13. Na2O 14. NH3 15. SO42-

Explanation:

1. LiBr   -      Lithium bromide

2. Cal₂   - Calcium iodide

3. Al₂0₃  - Aluminium oxide

4. Mg₃N₂  - Magnesium nitride

5. FeCl₂   Ferrous chloride [ Iron(II) chloride ]

6. FeCl₃   Ferric chloride   [ Iron(III) chloride ]

7. Cu₃N₂  Copper nitride

8. Ni₂O₃  Nickel(III) oxide

9. Al(SO4)₃ Aluminium sulphate

10. Ca₃(PO4)₂ Copper phosphate

11. Fe(OH)₂ Iron (II)  hydroxide

12. (NH4)₂S Ammonium sulphide

13. Na₂O   Sodium oxide

14. NH₃     Ammonia

15. SO₄²⁻  Sulphate ion

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