урівняти C2H6 + Br = C2H5Br + HBr

C4H19 + Cl = C4H10Cl2 + HCl

 

первая 1) CaC2 + 2H2O = Ca(OH)2 + C2H2 2) C2H2 + H2O = CH3CHO CH3CHO + H2 = CH3CH2OH 3)CH3CH2OH + CuO = CH3CHO + Cu + H2O СH3CHO + Ag2O = CH3COOH + 2Ag вторая 1) С + 2H2 = CH4 2)CH4 + CL2 = CH3CL + HCL 3) 2CH3CL + 2Na = C2H6 + 2NaCL C2H6 = C2H4 + H2 третья 1) С2H4 + HBr = C2H5Br 2) C2H5Br + NaOH = C2H5OH + NaBr 3) C2H5OH + CH3COOH = CH3COOC2H5 четвертая 1) CH3COOH + H2 = CH3CHO + H2O 2) СH3CHO + Ag2O = CH3COOH + 2Ag 3) CH3COOH + NaOH = CH3COONa + H2O пятая 1) C2H2 + H2O = CH3CHO 2) CH3CHO + Ag2O = CH3COOH + 2Ag 3) CH3COOH + C3H7OH = CH3COOC3H7 + H2O вроде так