Electrons are transferred from the reductant (in the anode half-cell) to the oxidant (in the cathode half-cell) through an external circuit, and inert solution phase ions are transferred between half-cells, through a… The half-reaction method is a systematic approach to balancing such equations that involves separate treatment of the oxidation and reduction half-reactions

In electrochemistry, the potentials of cells and half-cells are thermodynamic quantities that reflect the driving force or the spontaneity of their redox processes. Redox reactions are defined by changes in reactant oxidation numbers, and those most relevant to electrochemistry involve actual transfer of electrons.

half-reaction method — a systematic approach to balancing such equations that involves separate treatment of the oxidation and reduction half-reactions. potentials of cells and half-cells — thermodynamic quantities that reflect the driving force or the spontaneity of their redox processes. anode — electrode in an electrochemical cell at which oxidation occurs. cathode — electrode in an electrochemical cell at which reduction occurs.