Jawabanmu

2014-06-15T17:33:18+07:00
CH3CH2OH=C2H6O
Biloks C? dngan biloks H=+1, O=-2

C2H6O=0
(2.Biloks C)+(6.biloks H)+(1.biloks O)=0
2C+6-2=0
2C=-4
C=-2