Chemistry

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Where are metals usually found?
In the earths crust
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What method is used to extract a metal?
It depends on the reactivity of the metal
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What does an ore contain?
Enough metal to make it worth extracting the metal
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Where are unreactive metals found?
In the earth as the metal
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Why is iron oxide reduced in a blast furnace?
To make iron
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What do steels contain?
Carefully controlled quantites of carbon and other elements
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What is iron converted into?
Usually, alloys called steels
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What is wrong with iron from the blast furnace?
It is too brittle for many uses
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Why are aluminium and titanium expensive?
Because extracting them involved many stages and requires large amounts of energy
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Properties of titanium?
Resistant to corrosion, very strong, low density compares to other strong metals
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Properties of aluminium?
Low density, high in the reactivity series, resistant to corrosion
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Card 2

Front

What method is used to extract a metal?

Back

It depends on the reactivity of the metal

Card 3

Front

What does an ore contain?

Back

Preview of the front of card 3

Card 4

Front

Where are unreactive metals found?

Back

Preview of the front of card 4

Card 5

Front

Why is iron oxide reduced in a blast furnace?

Back

Preview of the front of card 5
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