Form 3 Science Chapter 6 Land and resources
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The document discusses oxidation reactions of metals and compares different metals in a reactivity series. It also discusses the reaction of copper with oxygen, and compares the elements sodium, chlorine, and the compound sodium chloride. Finally, it describes the abundance and classification of silicon compounds, listing some common silicon compounds and their uses.
Form 3 Science Chapter 6 Land and resources
- 1. CHAPTER 6 LAND AND RESOURCES
- 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
- 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
- 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