Jawabanmu

2014-08-10T12:49:38+07:00
1. alkana = CnH(2n + 2)
    alkena = CnH2n
    alkuna = CnH(2n-2)

2. normal butana
   CH3 - CH2 - CH3

Nama =  1 butena
CH2 = CH - CH2 - CH3
1 1 1