Объяснение:
C2H4 + H2 = C2H6
C2H6 + Br2 = C2H5Br + HBr
C2H5Br + KOH = C2H5OH + KBr
C2H5OH + CuO = CH3CHO + Cu + H2O
CH3CHO + 2Cu(OH)2 = CH3COOH + Cu2O + 2H2O
CH3COOH + Cl2 = CH2ClCOOH + HCl
CH2ClCOOH + 2NH3 = CH2NH2COOH + NH4Cl
