C2H5OH -> CH3COH -> CH3COOH -> (CH3COO)2Mg.
1. C2H5OH + CuO -> H2O + Cu + CH3COH.
2. CH3CHO + Ag2O = (NH3, t) -> CH3COOH + 2Ag.
3. 2CH3COOH + Mg -> (CH3COO)2Mg + H2
C2H5OH -> CH3COH -> CH3COOH -> (CH3COO)2Mg.
1. C2H5OH + CuO -> H2O + Cu + CH3COH.
2. CH3CHO + Ag2O = (NH3, t) -> CH3COOH + 2Ag.
3. 2CH3COOH + Mg -> (CH3COO)2Mg + H2