14-4 Elements from the earth

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Presentation transcript:

14-4 Elements from the earth Separating Metals

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

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

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