СH3CH2Cl + H2O = CH3CH2OH + HCl
CH3CH2OH = CH2=CH2 + H2O
CH2=CH2 + KMnO4 + H2SO4 = CH3COOH + MnSO4 + K2SO4 + H2O (коэфф. сама раставь)
2СH3COOH + Mg = (CH3COO)2Mg + H2
СH3CH2Cl + H2O = CH3CH2OH + HCl
CH3CH2OH = CH2=CH2 + H2O
CH2=CH2 + KMnO4 + H2SO4 = CH3COOH + MnSO4 + K2SO4 + H2O (коэфф. сама раставь)
2СH3COOH + Mg = (CH3COO)2Mg + H2