Jawabanmu

2014-08-23T14:38:02+07:00
C7H14 = heptena

CH2 = CH - CH2 - CH2 - CH2 - CH2 - CH3 
= 1-Heptena

CH3 - CH = CH - CH2 - CH2 - CH2 - CH3
= 2-Heptena

CH3 - CH2 - CH = CH - CH2 - CH2 - CH3
= 3-Heptena
maksdnya ini ?