Extraction of metals by reduction
Lesson 4 / 10
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I can explain how carbon can extract some metals from metal oxides by heating.
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Unreactive metals are often found in the earth as pure metal.
Metals that are less reactive than carbon can be extracted by heating their oxides with carbon.
A metal oxide is said to be reduced by carbon because the metal oxide loses oxygen.
Carbon is oxidised when it reacts with a metal oxide because it gains oxygen to form carbon dioxide.
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