The first step treatment of the solid electrode surface is mechanical grinding and polishing to the degree of mirror surface. In particular, when an inerting layer and a strongly adsorbed layer are present on the electrode surface, mechanical treatment is necessary. (However, mechanical polishing will cause certain damage to the electrode, so please operate carefully.
First look at whether [anode] is an inert electrode (it will be clearly stated in the question) If it is not an inert electrode, such as copper Then it is copper to participate in the reaction: Cu-2e = = = Cu2 If it is an inert electrode, only the ions in the solution need to be considered. The anodes are anions, the cathodes are cations The anode loses electrons and the cathode gains electrons.