Question

) briefly explain the difference between oxidation and reduction electrochemical reactions

Answer 1

in electrochemical cell there is an oxidation and reduction such as ( zn - cu ) in galvanic cell the zn lose 2 electrons and its called oxidation reaction (anode ) and cu is gain the electron that the zn lose it so it it is called reduction reaction (cathode)
and its notation zn^/zn^+2//cu^+2/cu