Which statement describes where oxidation and reduction half-reactions occur in an operating electrochemical cell?(1) Oxidation and reduction both occur at the anode
(2) Oxidation and reduction both occur at the cathode
(3) Oxidation occurs at the anode and reduction occurs at the cathode
(4) Oxidation occurs at the cathode and reduction occurs at the anode
(2) Oxidation and reduction both occur at the cathode
(3) Oxidation occurs at the anode and reduction occurs at the cathode
(4) Oxidation occurs at the cathode and reduction occurs at the anode