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14-4 Elements from the earth

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Presentation on theme: "14-4 Elements from the earth"— Presentation transcript:

1 14-4 Elements from the earth
Separating Metals

2 Gold: panning Characteristic Property
Use golds high density to separate it from its surrounding materials Large scale panning with the use of dredges

3 Copper: Electrolysis Exists as a compound
ORE – rock with a useful metal Chemical Activity Grind ore & dissolve in a solution Insert electrode with current Useful metal will move to one probe

4 Iron: Blast Furnace Exists as an ore Chemical Activity
Iron ore & source of carbon (coke) React at high temperatures in furnace Leave the purified iron behind


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