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The method used to extract a metal from its ore depends upon the stability
of its compound in the ore, which in turn depends upon the reactivity of the
metal:
The oxides of very reactive metals, such as aluminium, form stable oxides
and other compounds. A lot of energy is needed to reduce them to extract
the metal.
The oxides of less unreactive metals, such as iron, form less stable oxides
and other compounds.…read more

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