puffyboa.xyz APedia Chemistry Identify the substance being oxidized and the substance being reduced in the reaction Pb + PbO2 + H2...

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Chemistry

Identify the substance being oxidized and the substance being reduced in the reaction Pb + PbO2 + H2SO4  PbSO4. Explain.

1 Answer

puffyboa

Pb + Pb O2 + H2 S O4 --> Pb S O4
0     +4   -2    +1 +6 -2        +2 +6 -2

I have attempted to find the oxidation numbers above. It looks like Pb is being both oxidized and reduced? (Pb +4 --> Pb +2 ; Pb 0 --> Pb +2)