Uncle Michael

Oi Lam

回覆: 1

2007-08-11 3:11 am

Chem Test MC 唔該解釋~因為我唔識

chanel

回覆: 1

2007-08-10 9:54 pm

CHEM.酸鹼

chanel

回覆: 2

2007-08-10 10:02 pm

酸..CHEM

A student

回覆: 1

2007-08-09 7:10 pm

How to calculate ratio by weight

chanel

回覆: 1

2007-08-09 8:04 pm

CHEM金屬@.@"

yayababy

回覆: 2

2007-08-08 2:15 am

chem f.4

[匿名]

回覆: 1

2007-08-07 9:38 pm

苯乙腈與苯乙氰之分別

SzeLai

回覆: 1

2007-08-07 10:39 pm

Electroylsis

用戶137425

回覆: 3

2007-08-08 12:57 am

NH4+ 和 NO3- 的 氧化數?

tsz ho

回覆: 4

2007-08-05 10:14 pm

'20點'為什麼鐵會沉，人不會沉？

Oi Lam

回覆: 1

2007-08-04 3:26 am

唔識計chem數呀!!!About percentage purity of magnesium oxide

Sam苗``

回覆: 1

2007-08-04 1:23 am

中文化學名詞的讀音

yiu

回覆: 1

2007-08-01 6:27 am

help!!!AL-chem org chem入門的問題(關於H-bond)20分!!!!

[匿名]

回覆: 2

2007-07-20 5:57 am

double indicator titration calculation

unoldman2000

回覆: 1

2007-07-18 6:35 pm

佢叫咩名A OR B?

unoldman2000

回覆: 2

2007-07-15 7:22 am

想confirm 兩樣野!chem

unoldman2000

回覆: 1

2007-07-19 3:58 am

化學問題幾條,高手請入!

unoldman2000

回覆: 1

2007-07-19 4:36 am

幾個化學問題,高手請入

unoldman2000

回覆: 1

2007-07-18 6:50 pm

環丙烯and環丙烯基陽離子(中文答)

2003

回覆: 2

2007-07-15 2:34 am

about ionization enthalpy down the group

unoldman2000

回覆: 2

2007-07-13 7:03 pm

高中化學4條 20分

2003

回覆: 1

2007-07-14 1:09 am

rusting question

明

回覆: 3

2007-07-14 5:46 am

點解我睇番會考既歷年試題既電子結構圖同我本教科書所教既有出入?

unoldman2000

回覆: 1

2007-07-10 5:34 am

化學品的名稱

unoldman2000

回覆: 2

2007-07-01 9:20 pm

what is 『初生態氧』

yuk on

回覆: 1

2007-06-25 7:54 pm

丁烷氣究竟係氣體定液體

A student

回覆: 2

2007-06-22 2:02 pm

Acid and alkali

還不明白的薑

回覆: 1

2007-06-21 3:59 am

urgent!! chem...

恩樂

回覆: 2

2007-06-20 12:41 am

銨Ammonium

了了

回覆: 1

2007-06-19 7:58 pm

extraction method of copper

用戶109462

回覆: 1

2007-06-18 2:31 am

Chem 高手請答~~

用戶134020

回覆: 1

2007-06-16 8:11 am

Solubility Euilibria calculation

pui chi

回覆: 1

2007-06-12 10:21 pm

二氧化氮.............

kwan

回覆: 3

2007-06-10 11:20 pm

什麼是metallic hydrides

kwan

回覆: 1

2007-06-10 11:24 pm

什麼是metallic hydrides?

[匿名]

回覆: 1

2007-06-09 10:30 pm

化學問題"急"

[匿名]

回覆: 2

2007-06-05 11:40 pm

ZnS + O2 ------- ??????

2003

回覆: 1

2007-05-30 2:50 am

mc...

2003

回覆: 1

2007-05-30 2:50 am

Chem mc 一題

用戶83888

回覆: 3

2007-05-29 5:51 am

金屬氧化物 同水反應 生成物是甚麼?

2003

回覆: 1

2007-05-29 12:13 am

為何 so2 不能decolourize acidified potassium dichrome?

怡文

回覆: 2

2007-05-26 9:22 pm

化學一問...........

Kar Him

回覆: 1

2007-05-25 8:07 pm

Physics Question

小Ｇ

回覆: 3

2007-05-24 3:32 am

為甚麼氫不屬於任何Group？

用戶125770

回覆: 1

2007-05-23 10:09 pm

AL phy problem

goodaskmansir

回覆: 1

2007-05-21 6:53 pm

Chemistry (Gas law problem)

懶洋洋的彼得

回覆: 1

2007-05-17 6:28 am

Balance equation of Citric Acid

jason

回覆: 1

2007-05-17 4:59 am

Equations of Neutralisation

[匿名]

回覆: 1

2007-05-17 5:26 am

Question in Chem text book,plz help.

[匿名]

回覆: 1

2007-05-16 3:14 am

Sodium落水既reaction