Нужна помощь с химией!!!
1) X1=C2H5OH C2H5OH ---->C2H4 +H2O X2=HCl C2H4+HCl--->C2H5Cl 2) X1=C2H5Cl C2H5Cl+KOH ---> C2H4 +KCl +H2O X= Cl2 C2H4 + Cl2---> C2H4Cl2 3) C3H7Cl +KOH---> C3H6 +KCl +H2O X1= C3H6 C3H6+HBr----> C2H7Br X2=C2H7Br