Chemistry- C1: Metals and their uses

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What is an Ore?
A rock that contains enough of a metal to make it worth extracting.
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If a metal is more reactive than another how can it be extracted?
A displacement reaction.
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If a metal is less reactive than carbon how is it extracted?
A reduction reaction, carbon removes oxygen from the oxide.
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What is Iron reduced in?
A blast furnace.
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What does the impurities cause Iron to be?
Hard and brittle.
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What is iron most used to make?
Steel.
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What do Aluminium and Titanium resist?
Corrosion.
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They both have low what?
Densities.
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Why can Aluminium not be reduced?
It is more reactive than carbon.
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How is it extracted?
Electrolysis.
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Give the disadvantage of electrolysis
Expensive.
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What happens when Titanium is reduced?
Becomes brittle.
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Why is the extraction of Titanium expensive?
Many stages and needs lots of energy.
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How can copper be extracted from copper rich ores?
Smelting.
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What is smelting?
An ore is heated strongly in a furnace.
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What happens after smelting and why?
Electrolysis because the copper is impure.
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What is phytomining?
Using plants to absorb copper compounds from the ground.
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What happens next?
Plants are burned and copper is extracted from the ash.
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What is bioleaching?
Using bacteria to produce solutions containing copper compounds.
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Give 2 ways in which copper can be extracted from compounds?
Displacement and Electrolysis.
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Name 2 properties of transition metals:
Good conductors of heat and electricity.
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What are they useful materials for?
Buildings, vehicles, container, pipes and wires.
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Why is copper used in pipes and wires?
Good conductor of heat and electricity, doesn't react with water and is strong
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Give a use of gold:
Jewellery.
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Give 2 uses of Aluminium:
Buildings and aircrafts.
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Name the 2 copper alloys:
Bronze and Brass.
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Give benefits of using metals in construction:
Strong, can be bent into shape, flexible, good conductors.
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Give drawbacks of using metals in construction:
obtaining cause pollution, uses resources. expensive can rust.
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Other cards in this set

Card 2

Front

If a metal is more reactive than another how can it be extracted?

Back

A displacement reaction.

Card 3

Front

If a metal is less reactive than carbon how is it extracted?

Back

Preview of the front of card 3

Card 4

Front

What is Iron reduced in?

Back

Preview of the front of card 4

Card 5

Front

What does the impurities cause Iron to be?

Back

Preview of the front of card 5
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