Question

Consider the Zn(s) + Cu^+2(aq) --->Zn^+2(aq) + Cu(s) system. Which element was the electron donor?

Answer 1

Basically, electron donors are the elements that give up there electrons, so they will be oxidized. In the reaction, Zn(s) oxidizes into Zn^+2, so the 2 electrons are bing donated to the Cu^2+. Thus Zn(s) is the electron donor