1. Make formulae of the following compounds: 1. Potassium Chloride: 2. Potassium Iodide: 3. Potassium Bromide: 4. Potassium Hydroxide: 5. Potassium Nitrate: 6. Potassium Bicarbonate: 7. Potassium Sulphate: 8. Potassium Carbonate: 9. Sodium Chloride: 10. Sodium Hydroxide: 11. Sodium Nitrate: 12. Sodium Bicarbonate: 13. Sodium Sulphate: 14. Sodium Carbonate: 15. Silver Chloride: 16. Ammonium Chloride: 17: Ammonium Sulphate: 18: Ammonium Hydroxide: 19: Calcium Chloride: 20. Calsium Hydroxide:

2. 21. Calsium Nitrate: 22. Calsium Bicarbonate: 23. Calsium Sulphate: 24. Calsium Carbonate: 25. Calsium Oxide:

3. Balance the following equations: 1. N2 + H2 -----------> NH3 2. Hg + O2 -----------> HgO 3. Al + O2 ------------> Al2O3 4. P + O2 -------------> P2O3 5. KNO3 --------------> KNO2 + O2 6.H2O2 ---------------> H2O + O2 7.H2 + O2 ------------> H2O 8 Na + O2 ------------> Na2O 9. Mg + O2 -----------> MgO 10. Fe + O2 ----------> Fe3O4 11. NaOH + HNO3 -----------> NaNO3 + H2O 12. KClO3 + MnO2 -----------> Kcl + O2 + MnO2 13. CaCO3 + HCl ------------> CaCl2 + H2O + CO2 14. Zn + H3PO4 --------------> Zn3(PO4)2 + H2