C2H4+H2O=C2H5OH
C2H5OH+KMnO4+H2SO4=CH3COH+K2SO4+MnSO4+H2O
CH3COH+[Ag(NH3)2]OH=CH3COOH+Ag+NH3+H2O
CH3COOH+NaOH=CH3COONa+H2O
C2H4+KMnO4+H2O=CH2(OH)-CH2(OH)+MnO2+KOH
CH2(OH)-CH2(OH)+HBr=CH2(Br)-CH2(Br)+H2O
CH2(Br)-CH2(Br)+KOHспирт=C2H2 +KBr+H2O
C2H2+H2O=CH3COH
CH3COH+Cu(OH)2=CH3COOH+Cu2O+H2O
осталось только все уравнять