急.... structural formula...T^T

如果只要一種我都幫到你既= ="
1) CH3CH=CHCH2CH2CH3
Hex-2-ene
2)畫唔到 ring structure其中兩個c係double bond

3)CH3CH2CH2CH2CH2CH2OH
Hexan-1-ol
4)CH3COOCH3 已經係 只不過condense左

5)sorry呢個幫唔到

希望幫到你啦^^"

1. C=C-C-C-C-C
2. C=C-C=C-C-C
3. C-C-C-C-C-C-OH
4.　　 　O
　　 　　 ||
　 CH3-C-O-CH3
5.　　 　O
　　 　　||
　　CH3-C-CH3

This is not a reasonable question. As there are so many many structual, geometric or even stereo-isomers to your formula. It is impossible for anybody to draw all of the above structures!!!!