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What are in the ores which make it economical to mine?
Metal.
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What is done to the ores before the metal is extracted and purified?
They are concentrated.
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What are most metals when they are found in the earth?
They are in compounds.
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How are metals which are less reactive than carbon extracted from their oxides?
They are put in a blast furnace. for example Iron Oxide would go into the furnace to make Iron
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How is copper exrtracted from the Ore?
heating the Ores in a furnace (smelting).
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How is the copper purified?
Electrolysis.
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What is happening to the supply of copper rich ores?
It is becoming scarce, or limited.
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What is Phytomining?
When plants are used to absorb metal compounds. Then the plants are burned to produce ash which is rich in the metal compounds.
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What is Bioleaching?
The use of Bacteria to produce leachate solutions that contain the metal compounds.
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What happens to the positive ions during Electrolysis?
They move towards the negative electrode.
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What are scientists trying to do to reduce environmental impacts of traditional mining?
They are trying to create new ways of extracting copper from low grade ore.
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Why are Aluminium and Titanium different to other metals in extracting them?
They cannot be extracted from their oxides by reduction with carbon.
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Can you name one thing that we can do to reduce environmental impacts of extracting metals?
We should recycle them.
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Other cards in this set

Card 2

Front

What is done to the ores before the metal is extracted and purified?

Back

They are concentrated.

Card 3

Front

What are most metals when they are found in the earth?

Back

Preview of the front of card 3

Card 4

Front

How are metals which are less reactive than carbon extracted from their oxides?

Back

Preview of the front of card 4

Card 5

Front

How is copper exrtracted from the Ore?

Back

Preview of the front of card 5
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