Uncle Michael

[匿名]

回覆: 1

2007-05-16 12:41 am

Reaction of concentrated sulphuric acid and sodium chloride

[匿名]

回覆: 1

2007-05-13 9:51 pm

關於催化劑的說法哪個正確?

用戶128713

回覆: 1

2007-05-13 9:18 pm

reagent question

用戶116093

回覆: 2

2007-05-13 11:24 am

chem---optical activity

用戶128713

回覆: 1

2007-05-13 5:12 pm

reaction question

用戶128713

回覆: 1

2007-05-13 5:15 pm

reaction question

Ng Mei Mei

回覆: 1

2007-05-04 9:59 pm

f4 chem

用戶152548

回覆: 1

2007-05-01 5:48 pm

phosphate

用戶167672

回覆: 1

2007-04-29 1:50 pm

physics problems (3)

2003

回覆: 2

2007-04-29 4:50 am

heating xxx nitrate

用戶98046

回覆: 1

2007-04-26 6:01 am

F3 physics question in book

用戶98046

回覆: 1

2007-04-26 5:57 am

F3 physics question in book

用戶98046

回覆: 1

2007-04-26 5:52 am

F3 Physics Question in book ~

[匿名]

回覆: 1

2007-04-25 3:38 am

急!急!急,初二物理題二條,關於阿基米德原理

puilam

回覆: 2

2007-04-25 12:06 am

什麼是 monosodium glutamate?它對人體有什麼影響?

Linda

回覆: 1

2007-04-24 5:39 am

chemistry question

guaeiogaeighi

回覆: 1

2007-04-23 6:04 am

Chem easy Q~

guaeiogaeighi

回覆: 1

2007-04-23 6:10 am

Chem easy Q2~

guaeiogaeighi

回覆: 1

2007-04-22 11:33 pm

Chem Quick!!!

guaeiogaeighi

回覆: 1

2007-04-22 10:43 pm

chem simple~

佳妮

回覆: 2

2007-04-22 8:17 pm

neutralization

LEO LEUNG

回覆: 1

2007-04-22 2:26 am

硬脂酸鈉化學式係咩~~

Jasmine

回覆: 3

2007-04-21 7:29 am

關於dilution一問…

STEVIE-G™

回覆: 2

2007-04-20 12:24 am

2題化學方程式!!!!!!!!

用戶92111

回覆: 1

2007-04-19 8:46 pm

2006 CE CHEM LQ # 1b) iii)

用戶136335

回覆: 2

2007-04-19 5:47 am

Reacting Mass Quesion(F4)

用戶20372

回覆: 3

2007-04-18 11:47 pm

potassium iodide solution using carbon electrodes

用戶92111

回覆: 1

2007-04-18 9:27 pm

ester 係 liquid ,,,,點解做實驗,,,,會整左 一層layer ?

Alpha W

回覆: 1

2007-04-18 7:29 am

為什麼酒精的溶解度可以無限溶於水?

[匿名]

回覆: 2

2007-04-17 7:29 am

分子計算...高手請進..+20

懶洋洋的彼得

回覆: 1

2007-04-16 5:30 am

What is the reaction of these chemical ?

用戶117848

回覆: 2

2007-04-16 5:40 am

鹽有無分酸鹼???

[匿名]

回覆: 2

2007-04-16 3:22 am

科學作業唔識做...請高人指點~

Wilson

回覆: 1

2007-04-16 1:30 am

titration+citric acid

maisy

回覆: 1

2007-04-15 9:48 pm

化學的問題

Wilson

回覆: 1

2007-04-15 11:32 pm

titration on citric acid of orange juice

Kala

回覆: 1

2007-04-15 9:12 am

amount and mole

Wilson

回覆: 1

2007-04-15 8:42 am

conjugate acid-base pair

Wilson

回覆: 1

2007-04-14 2:24 am

anti-bonding orbitals

STEVIE-G™

回覆: 3

2007-04-14 2:47 am

共價/離子化合物

用戶20372

回覆: 1

2007-04-14 2:58 am

Carbon dioxide + Sodium hydroxide

用戶20372

回覆: 1

2007-04-14 2:05 am

Sodium hydroxide + Sulphur dioxide

用戶20372

回覆: 3

2007-04-14 1:33 am

Electrolysis using graphite electrodes

用戶20372

回覆: 1

2007-04-13 11:53 pm

1,1,1-trichloroethane + aqueous solution ?

用戶20372

回覆: 1

2007-04-14 12:01 am

hypochlorite ions & hypochlorous ions

用戶128130

回覆: 1

2007-04-13 5:53 am

我想問nylon

chun yu

回覆: 1

2007-04-13 5:57 am

pyrolysis and graphite 問~

Alan

回覆: 1

2007-04-13 8:52 am

吸濕粉能吸收空氣中的水份?

mark

回覆: 3

2007-04-13 6:57 am

碳C導電體??

chunfaat

回覆: 3

2007-04-12 10:31 pm

conc.HNO3