The chemical reaction you provided is a series of reactions involving different compounds:

CH4 (Methane) + Cl2 (Chlorine) -> CH3Cl (Chloromethane) + HCl (Hydrochloric acid)

CH3Cl (Chloromethane) + C2H6 (Ethane) -> C2H5Cl (Chloroethane) + CH4 (Methane)

C2H5Cl (Chloroethane) + OH- (Hydroxide ion) -> C2H5OH (Ethanol) + Cl- (Chloride ion)

C2H5OH (Ethanol) -> CO2 (Carbon dioxide) + H2O (Water)

These reactions involve halogenation, hydrolysis, and oxidation processes.