This document lists various chemical compounds including acids, bases, salts, and metal oxides. Specifically, it mentions hydrochloric acid, aluminum hydroxide, silver bromide, calcium carbonate, calcium sulfate, iron (III) oxide, copper (II) sulfate, magnesium hydroxide, sodium chloride, sodium hydroxide, sulfur dioxide, sulfur trioxide, titanium dioxide, dihydrogen oxide, zinc oxide, zinc sulfide, zinc carbonate, mercury (I) chloride, mercuric iodide, and calcium hydroxide.

2. HYDROCHLORIC ACID

3. ALUMINUM HYDROXIDE

4. SILVER BROMIDE

5. CALCIUM CARBONATE

6. CALCIUM SULFATE

7. IRON (III) OXIDE

8. COPPER (II) SULFATE

9. MAGNESIUM HYDROXIDE

10. SODIUM CHLORIDE

11. SODIUM HYDROXIDE

12. SULFER DIOXIDE

13. SULFER TRIOXIDE

14. TITANIUM DIOXIDE

15. DIHYDROGEN OXIDE

16. ZINC OXIDE

17. ZINC SULFIDE

18. ZINC CARBONATE

19. MERCURY (I) CHLORIDE

20. MERCURIC IODIDE

21. CALCIUM HYDROXIDE