Recent content by shikam08

I don't understand how to insert the number of electrons on both sides to balance the equations and cancel out the electrons.

Homework Statement Balance the following redox reactions occurring in an acidic solution. Homework Equations PbO2(s)+I-(aq)---->Pb2+(aq)+I2(s) The Attempt at a Solution 1.) half reactions: a.) reduction: I-(aq)----->I2(s) b.) oxidation: PbO2(s)------>Pb2+(aq) 2.) balance...