CE Chem definition

Lson

定義好似一兩分ja=,="
咁晒心機?-.-?
到時吹都得la~

Zend

Originally posted by Lson at 2006-3-20 18:30:
定義好似一兩分ja=,="
咁晒心機?-.-?
到時吹都得la~

寫essay 用的~XD

[S]【YU】

少少補充.
cracking 要 heat "in absence of air". Otherwise it will burn.

最外層電子是 valence electrons.
沒有鍵合的電子應該叫 unbonded valence electrons
lone pair = 1對沒有鍵合的電子. 2粒only.
3d dimentional structure中, 電子是 1 pair pair.
In H2O , O have 2 bond pairs and 2 lone pairs.

[ Last edited by [S]【YU】 on 2006-3-20 at 07:18 PM ]

Zend

即係

裂解作用是即在缺氧/空氣的情況，藉著與/催化劑共熱，把大的烴分子分裂成小的烴分子的過程。

yk852066

Originally posted by Zend at 2006-3-20 18:01:

仲打梗中(其實我做書後exe中)
中文考多過英文考ar ma

英文=.=
要找人幫下手

me

Zend

Originally posted by yk852066 at 2006-3-24 19:03:

me

Go ahead!

金田一耕助

Originally posted by Zend at 2006-3-20 00:09:
繼續打下去
為方別大家溫書...
only Chinese version

中中學生加油bao_07

Zend

Originally posted by 金田一耕助 at 2006-3-24 19:37:

中中學生加油bao_07

多謝啊(em61)

金田一耕助

Originally posted by Zend at 2006-3-24 19:39:

多謝啊(em61)

不過好似你呢種中中生,但已經識左好多chem ge 英文好少見bao_16
難怪比人話喪

Zend

Originally posted by 金田一耕助 at 2006-3-24 19:53:

不過好似你呢種中中生,但已經識左好多chem ge 英文好少見bao_16
難怪比人話喪

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