1) a chemical reaction produces an electric current
2) an electric current produces a chemical reaction.
3) an oxidation reaction takes places at the cathode.
4) a reduction takes place at the anode.

(may be broke/outdated!)
1) a chemical reaction produces an electric current
2) an electric current produces a chemical reaction.
3) an oxidation reaction takes places at the cathode.
4) a reduction takes place at the anode.