Объяснение:
СH3-Br + 2Na + Br-CH3 -> CH3-CH3 + 2NaBr
CH3-CH3 + Cl2 -> CH3-CH2-Cl + HCl
CH3-CH2-Cl + KOH -> CH2=CH2 + KCl + H2O
CH2=CH2 + Br2 -> CH2(Br)-CH2(Br)
CH2(Br)-CH2(Br) + 2KOH -> CH=-CH + 2KBr + 2H2O
Объяснение:
СH3-Br + 2Na + Br-CH3 -> CH3-CH3 + 2NaBr
CH3-CH3 + Cl2 -> CH3-CH2-Cl + HCl
CH3-CH2-Cl + KOH -> CH2=CH2 + KCl + H2O
CH2=CH2 + Br2 -> CH2(Br)-CH2(Br)
CH2(Br)-CH2(Br) + 2KOH -> CH=-CH + 2KBr + 2H2O