1. Do now! Can you stick the summary and word sheets in?
Don’t forget we have a test on Friday (topics 9e and 9f)

2. Last lesson
Extraction of metals from their ores related to the reactivity series

3. Ores
Most metals are found naturally in rocks called ores. They are in compounds, chemically bonded to other elements
iron ore

4. Native
Some unreactive metals can be found as elements. They are called native metals.

5. Roasting
Some unreactive metals can be extracted from a compound simply by heating. This is called roasting.

6. More reactive metals?
Zinc, iron, tin, lead

7. Extracting metals with carbon
Carbon is higher than some metals in the reactivity series. It can be used to extract medium reactive metals.

8. Extracting metals with carbon
lead oxide + carbon lead + carbon dioxide
2PbO(s) + C(s) 2Pb(s) + CO2(g)

9. Extracting metals with carbon
lead oxide + carbon lead + carbon dioxide
2PbO(s) + C(s) 2Pb(s) + CO2(g)
carbon is oxidised
lead oxide is reduced

10. The Blast furnace YouTube - Steelmaking: Blast Furnace Molten iron
Iron ore (haematite), coke (carbon) and limestone (calcium carbonate)
Hot waste gases (recycled to heat furnace)
1000°C
YouTube - Steelmaking: Blast Furnace
1500°C
1900°C
Blasts of hot air
Blasts of hot air
Molten iron

11. More reactive metals?

12. Electrolysis of aluminium oxide
CO2

13. Let’s extract a metal!

14. Carbon + copper oxide copper + carbon dioxide

15. Today’s lesson
Uses of metals

16. Gold
Unreactive, malleable and a good conductor of electricity

17. Gold Unreactive, malleable and a good conductor of electricity
Jewelry, wires in computers, gold leaf

18. Aluminium
Light, and a very unreactive oxide layer forms over the reactive metal means it does not corrode

19. Aluminium
Light, and a very unreactive oxide layer forms over the reactive metal means it does not corrode
Aircraft, cars, cutlery etc.

20. Steel (mainly iron)
Strong, fairly cheap.

21. Steel (mainly iron)
Strong, fairly cheap.
Building

22. Copper
Ductile, unreactive and a good conductor

23. Copper
Ductile, unreactive and a good conductor
Saucepans, wires etc.

24. Let’s go for a walk!
Looking for uses of metals

25. Reading?!
Pages 84 and 85

26. Next topic?