Fe(s) +Pb^2 (aq)---->Fe ^2+ (aq) +Pb(s) which reactant has been oxidized
Fe is zero on the left; +2 on the right.
Pb is +2 on the left; zero on the right.
Oxidation is the loss of electrons. Which half reaction has lost electrons.
Pb is +2 on the left; zero on the right.
Oxidation is the loss of electrons. Which half reaction has lost electrons.