Răspuns:
Explicație:
CH2=CH-CH2-CH3 1butena
CH3-CH=CH-CH3 2butena
CH2=C(CH3)-CH3 2metil1 propena
CH2=CH-CH3+ H2---> CH3-CH2-CH3 propan
CH2=CH-CH3 +Cl2---> CH2CL-CH2Cl 1,2 dicloroetan
CH2=CH-CH3+ HOH----> CH3-CHOH-CH3 2 propanol
CH2=CH-CH3 + HCl---> CH3-CHCL-CH3 2 cloro-propan
miu,propena= (3x12gC+6gH)/mol= 42g/mol
42g propena........36gC
4,2g...............................x
x=m=3,6gC