Помогите решить уравнение реакции: CH3-CH=CH2 -> CH3-CH2-CH3 -> CH3-CH(Br)-CH3 -> CH3-CH(CH3)-CH(CH3)-CH3 -> CO2

1)CH3CHCH2+H2=CH3CH2CH32)CH3CH2CH3+Br2=CH3CHBrCH3+HBr3)2Na+2CH3CHBrCH3=2NaBr+CH3CH(CH3)CH(CH3)CH34)2CH3CH(CH3)CH(CH3)CH3+19O2=14H2O+12CO2