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How is a metal extracted from a reactivity series?
How are metals extracted?
How do you extract metals?
Which metals are extracted in decreasing order of reactivity?
Can metals be extracted using reduction with carbon?
Can metals be extracted from a compound using electrolysis?
Different methods are used to extract a metal depending on its position in the reactivity series. The diagram shows a simple reactivity series, including carbon and hydrogen.
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Metals can be arranged in order of reactivity by observing...
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Metals more reactive than carbon, such as aluminium, are extracted by electrolysis, while metals less reactive than carbon, such as iron, may be extracted by reduction with carbon.
Metals can be arranged in order of reactivity by observing their reactions with water, acid and displacement reactions with other metal compounds. This determines how it is extracted from its ore.
This page looks at the various factors which influence the choice of method for extracting metals from their ores, including reduction by carbon, reduction by a reactive metal (like sodium or magnesium), and by electrolysis.
Electrolysis is used to extract reactive metals from molten ores (melted materials containing metals). Electrolysis is used to extract metals such as aluminium, which are higher in the reactivity series than carbon.
The extraction of metals depends on their reactivity. A metal that is less reactive than carbon can be extracted by heating it with carbon. As carbon is more reactive, it will displace the metal from the oxide. This process forms a pure metal.
Metals are extracted from ores which are rocks found on the Earth’s crust which contain metal compounds. Different methods can be used to extract the pure metal from ores. The method used depends on the metal’s position in the reactivity series.
