rickygaogaigar

[匿名]

回覆: 1

2007-08-10 8:24 am

Extraction of metal

chanel

回覆: 2

2007-08-09 6:52 am

chem.酸鹼

chanel

回覆: 1

2007-08-09 7:07 am

ｃｈｅｍ．．

嘉銘

回覆: 1

2007-08-08 7:20 am

請告訴我柯南中所有有關化學的案例。

用戶7639

回覆: 3

2007-06-08 5:37 am

chem.........

A student

回覆: 2

2007-05-16 5:15 am

About yeast and glucose HURRY!

cccc

回覆: 3

2007-05-16 5:02 am

Ammonium solution +CUSO4 very easy

KA YAN

回覆: 3

2007-05-07 3:44 am

試建議一些長遠有效方法，有助解決塑膠帶來的環境問題的方法．

km

回覆: 1

2007-04-23 1:47 am

請用中文和英分別文詳細說出中四化學科的課題

用戶140614

回覆: 3

2007-04-01 4:53 am

CHEM F.4 -------------------------40 marks

[匿名]

回覆: 3

2007-03-07 6:06 am

Gumdam War

用戶21707

回覆: 1

2007-03-04 2:22 am

1 F.4 Chem question

[匿名]

回覆: 4

2007-03-04 2:30 am

點解漏煤氣會爆炸？

[匿名]

回覆: 3

2007-02-24 9:15 pm

點解要acidify potassium permanganese??(20marks)

Jay

回覆: 2

2007-02-22 4:36 am

question about the preration of ester

俊杰

回覆: 2

2007-02-18 1:26 am

檸檬汁加入碳酸氫鈉有什麼反應??

Kenneth

回覆: 2

2007-02-08 4:32 am

點解要加excess alkali?

Thomas Ho

回覆: 1

2007-02-08 5:43 am

為什麼「我可舒適」(一種胃藥) 需存在到陰涼處??

[匿名]

回覆: 2

2007-02-03 3:41 am

gundaw war

用戶220694

回覆: 2

2007-02-04 6:47 am

carbonate!

lung pan

回覆: 1

2007-01-31 4:32 am

safety in useing town gas?

[匿名]

回覆: 3

2007-01-26 4:32 am

GUNDAM WARS 卡

ho yee

回覆: 2

2007-01-10 10:22 pm

CHEM QUESTION

用戶110394

回覆: 1

2007-01-07 10:27 pm

electronegativity

2003

回覆: 2

2007-01-06 9:15 pm

naming of hydrocarbon

2003

回覆: 2

2007-01-02 7:01 am

hydrocarbon

herichcyh

回覆: 1

2006-12-29 2:33 am

Redox and ester

[匿名]

回覆: 2

2006-12-27 7:02 am

help~~chem...optically active

L_C

回覆: 2

2006-12-28 10:24 pm

英皇教育職員制服一問...

[匿名]

回覆: 2

2006-12-16 3:49 am

請問大家有無21st Century Chemistry Book 1A 同 1B 既SOLUTION呀??

[匿名]

回覆: 2

2006-12-16 10:18 pm

ion, atom, formula unit, molecules 都係particles?

用戶79906

回覆: 1

2006-12-17 1:16 am

Relative isotopic mass 跟 relative atomic mass有什麼分別?