*
*
*
The oxidation of aluminum is
more likely than the oxidation of
zinc.
These potentials indicate the relative
thermodynamic
tendency for the indicated half-reaction
to occur.
Al <--> Al+3 + 3 e– E = -0.166
volts
Zn <--> Zn+2 + 2 e– E = -0.763 volts
Cu <-->
Cu+2 + 2 e– E = +0.34
volts