Răspuns:
CnH2n ---> miu= 12n+2n=14n
d=miu/miu,aer miu= 1,453x29=>42g/mol
42=14n--> n=3---> propena
CH2=CH-CH3+ Cl2===> CH2Cl-CHCl-CH3 1,2 dicloropropan
CH2=CH-CH3+ 5O----> CO2+H2O+CH3COOH
CH2=CH-CH3+HOH---> CH3-CHOH-CH3 2.propanol
Explicație:
