angelliu
發表於 2009-3-7 08:34:40
你打錯字呢 sure啦
hoyin2121 發表於 2009-3-6 06:11 PM https://bbs.tennyy.com/images/common/back.gif
唉- -我都唔知簡咩科好-.-"
e+簡酒店管理,,econ,,中史
不過聽人講好多人簡頭果2科,,好難入t_t"
saxon
發表於 2009-3-7 09:59:17
plastic oxide..
plastic sulphate
plastic carbonate
plastic hydrogencarbonate
plastic bromide
其實大把你數...
仲有我想問...
plastic 係1+定2+...
OH係1-搭到落plastic到
H2係1-*2又搭到落plastic到= ...
鋒bstc 發表於 3-3-2009 05:25 PM http://www.bbs.tennyy.com/images/common/back.gif
:71; 不是單看charge就可以, 還要看可以不可以balance share electron, 要8個才算balance
打個比喻:
O=2.8.6 (6個electron, 就是說差兩個electron才可以balance), 剛好H是2.1, 所以share兩粒
H=2.1 (1個electron)
H2O (剛好後面加起來是6+1+1=8)
:70; 希望這樣解釋你明白
hoyin2121
發表於 2009-3-7 10:48:38
21# angelliu
HK商科最有前途
econ pa commerce+埋中英數差1 2科咋嘛是但揀
angelliu
發表於 2009-3-7 20:54:22
21# angelliu
HK商科最有前途
econ pa commerce+埋中英數差1 2科咋嘛是但揀
hoyin2121 發表於 2009-3-7 10:48 AM https://bbs.tennyy.com/images/common/back.gif
就係商難入入唔到ma= ="
hoyin2121
發表於 2009-3-7 23:29:06
肯讀無話讀唔到
angelliu
發表於 2009-3-8 12:55:14
肯讀無話讀唔到
hoyin2121 發表於 2009-3-7 11:29 PM https://bbs.tennyy.com/images/common/back.gif
讀我ok,,但未必入到去讀!
putowong88
發表於 2009-3-8 13:46:16
haha nice way to learn chemistry
hoyin2121
發表於 2009-3-8 16:33:35
讀我ok,,但未必入到去讀!
angelliu 發表於 2009-3-8 12:55 PM https://bbs.tennyy.com/images/common/back.gif
你中幾= =
123412
發表於 2009-3-8 16:44:14
睇到我呆左-0-
andyyeung0927
發表於 2009-3-8 16:52:21
阿妹你真係無聊到爆-3-”