Question

For the oxidation-reduction reaction equation given here, 4Al + 3O2 --> 2Al2O3 indicate how many electrons...

For the oxidation-reduction reaction equation given here,
4Al + 3O2 --> 2Al2O3
indicate how many electrons are transferred in the formation of 1 formula unit of product.
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Answer #1

                    0                  +3

                   4Al + 3O2 2Al2O3

In the above reaction the oxidation state of Al changes from 0 to +3

4 aluminiun atoms in the left hand side are converted to 4 Al 3+ ions in the right hand side

So totally 4x 3 = 12 electrons are transferred for 2 formula units of the product

For 1 formula unit of product the number of electrons transferred are 12/ 2 = 6

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