С2Н6+Cl2->C2H5Cl C2H5Cl+KOH сп-> C2H5OH С2H5OH+CuO->CH3CHO+Cu+H2O Ch3CHO+Ag2O->CH3COOH+2Ag CH3COOH+KOH->CH3COOK+H2O
возможно так
С2Н6+Cl2->C2H5Cl
C2H5Cl+KOH сп-> C2H5OH
С2H5OH+CuO->CH3CHO+Cu+H2O
Ch3CHO+Ag2O->CH3COOH+2Ag
CH3COOH+KOH->CH3COOK+H2O
возможно так