请根据单词写出化学式
1. Sodium Chloride________________
2. Calcium Carbonate________________
3. Magnesium Sulfate________________
4. Hydrogen Peroxide________________
5. Ammonium Chloride________________
6. Potassium Nitrate________________
7. Aluminium Oxide________________
8. Iron(II) Sulfide________________
9. Copper(II) Chloride________________
10. Sodium Hydroxide________________
11. Silicon dioxide________________
12. Ferric oxide________________
13. Sodium Bicarbonate________________
14. Calcium Phosphate________________
14. Magnesium Chloride________________
15.Potassium permanganate________________
16. Copper sulfate pentahydrate ________________
17.. Sodium sulfate decahydrate ________________
18. Hydrochloric acid ________________
19. Sulfuric acid ________________
20. Nitrous acid________________