Odpowiedź :
C2H4+F2--->C2H4F2 difluoroetan
C4H8+H2--->C4H10 butan
C7H12+Br2--->C7H12Br2 1,2-dibromohept-1-en
C5H8+2 H2--->C5H12 pentan
C2H4+F2--->C2H4F2 difluoroetan
C4H8+H2--->C4H10 butan
C7H12+Br2--->C7H12Br2 1,2-dibromohept-1-en
C5H8+2 H2--->C5H12 pentan