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In a lead acid battery (the battery that is used to start your car), the following...

In a lead acid battery (the battery that is used to start your car), the following reaction occurs: Pb(s) + PbO2(s) + 2 H2SO4(aq) → 2 PbSO4(s) + 2 H2O(l) How many electrons are transferred in this reaction? Enter your answer as an integer.

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Answer #1

Lead in lead solid goes from oxidation number zero to two while lead ion in lead oxide goes from oxidation number four to two. So, two electrons are donated by lead solid and the same two electrons are accepted by the lead ion.

So the number of electrons transferred is 2.

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