How can we be sure there is no electron transfer

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How can we be sure there is no electron transfer involving SO4 2- in the lead-acid battery (car battery) reaction: Pb(s) + PbO2(s) + 2 H2 SO4(aq) → 2 PbSO4(s) + 2 H2 O(l)?

Reference no: EM131959100

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