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Aluminium and bromine

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Oxidation: 2 Al-> 2 Al 3 + +6 e -
Reduction: 3 Br 2 + 6e --> 6 Br -
2 Al + 3 Br 2 -> 2 AlBr 3 2 Al + 3 Br 2-> 2 AlBr 3

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