Chemistry-C2 - Metals and alloys

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  • Created by: louhone
  • Created on: 13-05-15 12:29
How can you purify copper?
You can purify copper by using electrolysis.
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What are the advantages of recyling copper?
It has a fairly low melting point so the energy cost to melt it is low. It reduces the need for mining, saving reserves and the enviromental problem caused by mining. It keeps the cost of copper down.
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What are the disadvantages and problems of recyling copper?
Small amounts can be difficult to seperate. Less copper is mined so there are fewer mining jobs. The actual seperation process may produce pollution, a lot of copper is thrown away as it is difficult to persuade people to recyle.
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What is oxidation?
Oxidation happens at the anode and it is when the anode loses electrons>
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What is reduction?
Reduction happens at the cathode and is where the copper is plated with the gain of electrons.
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What are alloys?
Alloys are a mixture containing at least one metal.
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What is a smart alloy?
A smart alloy returns to its orignal shape after being heated to a certain tempurature.
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Other cards in this set

Card 2

Front

What are the advantages of recyling copper?

Back

It has a fairly low melting point so the energy cost to melt it is low. It reduces the need for mining, saving reserves and the enviromental problem caused by mining. It keeps the cost of copper down.

Card 3

Front

What are the disadvantages and problems of recyling copper?

Back

Preview of the front of card 3

Card 4

Front

What is oxidation?

Back

Preview of the front of card 4

Card 5

Front

What is reduction?

Back

Preview of the front of card 5
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