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See the reaction between concentrated su...

See the reaction between concentrated sulphuric acid and copper.
`Cu^@+2H_2^(+1)S^(+6)O_4^(-2)` → `Cu^(+2)S^(+6)O_4^(-2)+S^(+4)O_2^(-2)+2H_2^(+1)O^(-2)`
Is copper oxidized or reduce in this case?

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