1. CHAPTER 6 LAND AND RESOURCES

2. METAL OXIDATION

5. OXIDATION OF METAL
 Metal + Oxygen → Metal Oxide
 Iron + Oxygen →
 Aluminium + Oxygen →
 Zinc + Oxygen →
 Magnesium + Oxygen →

6.  Potassium, sodium, lithium, calcium
and magnesium react with oxygen and
burn in air.

7. METALS THAT DO NOT
UNDERGO OXIDATION

8. REACTIVITY SERIES OF METALS
Magnesium >> Aluminium >> Zinc >> Iron >>
Copper>> Gold >> Silver

9. MAGNESIUM +OXYGEN → MAGNESIUM OXIDE

10. ZINC + OXYGEN → ZINC OXIDE

11. Which is the correct word equation for
the reaction when copper is heated
strongly in air?
 copper + air → copper carbonate
 copper + water → copper oxide
 copper + oxygen → copper oxide

12. METAL + SULPHUR → METAL SULPHIDE
 Iron + Sulphur →
 Aluminium + Sulphur →
 Zinc + Sulphur →
 Magnesium + Sulphur →

13. COMPARISON BETWEEN
ELEMENTS AND COMPOUNDS

14. COMPARE SODIUM, CHLORINE AND
SODIUM CHLORIDE

15. ABUNDANCE OF SILICON
COMPOUNDS

16. CLASSIFICATION OF SILICON
COMPOUNDS
Silicon
compounds
Silica Silicates
(Silicon Dioxide) (Silicon + Oxygen + Metal)
Quartz Flint Sand Clay Asbestos Gemstones Mica

17. QUARTZ

18. SAND

19. FLINT

20. CLAY

21. ASBESTOS

22. GEMSTONES

23. MICA

24. USES OF FIBRE GLASSES

25. CLAY – KAOLIN

26. NATURAL
SILICATES

27. CHARACTERISTICS OF
SILICON COMPOUNDS
 Stable – Not reactive
 Do not dissolve in water (except sodium silicate)
 Do not react with acids
 Do not change shape / form when heated
 Only acidic silica dissolve in alkalis to form
silicates