как решить
1) CH2=C-CH3-CH3+H2
2) CH2=C-CH3-CH3+Br2
3) CH3-C-CH3=CH-CH3+HCL

1) CH4 + Br2 --t-> CH3Br + HBr

2) CH3Br + 2Na ----> C2H6 + 2NaBr

3) С2H6 --t,Ni--> C2H4 + H2

4) C2H4 ----> [-H2C-CH2-]n