Ng

Ng

回覆: 4

2012-03-10 12:42 am

請問呢個係咩反應, 點解會出到hcl gas???

Ng

回覆: 4

2011-08-23 8:19 pm

iron react witn acid

Ng

回覆: 1

2011-08-13 10:10 am

有關avogadro constant的量度方法

Ng

回覆: 5

2011-04-19 4:57 pm

漂白水及哥士的混合反應

Ng

回覆: 2

2010-01-12 7:45 pm

邊度有得買打火器?

Ng

回覆: 1

2008-12-15 4:05 am

free radical同ion的分別

Ng

回覆: 1

2008-11-04 8:21 pm

睇中左呢兩支遠攝變焦鏡

Ng

回覆: 1

2008-11-04 9:42 am

小黑一至五代

Ng

回覆: 1

2008-05-30 7:57 pm

想問有關cleansing agent

Ng

回覆: 1

2008-02-06 12:32 am

Colorimeter, photometer and Fluorimeter 的分別??

Ng

回覆: 3

2007-08-24 7:40 pm

強積金 轉公司問題???

Ng

回覆: 4

2007-07-10 2:06 am

究竟係天星碼頭拆左 還是皇后碼頭被拆

Ng

回覆: 1

2007-05-10 5:19 pm

大氣壓力與地心吸力

Ng

回覆: 4

2007-05-10 2:10 am

where is the verb???

Ng

回覆: 2

2007-05-08 6:00 pm

Is it a ionic compound?

Ng

回覆: 1

2007-05-07 8:31 pm

想問GM CM的教席

Ng

回覆: 1

2007-05-03 8:21 pm

how to use such expression "by which"?

Ng

回覆: 5

2007-05-03 9:42 am

我想學好英文語言, 可否給些建議!!!!!!!謝

Ng

回覆: 1

2007-04-30 9:27 pm

我想問chemical cell equation (plz help!!!!!!!)

Ng

回覆: 1

2007-04-30 5:03 pm

phase clause different??

Ng

回覆: 1

2007-04-30 4:50 pm

津貼學校與直資學校有什麼分別?

Ng

回覆: 4

2007-04-22 5:52 pm

be.....的用法

Ng

回覆: 2

2007-04-20 11:24 pm

Electrolyte????

Ng

回覆: 1

2007-04-19 7:37 pm

ionization defination??

Ng

回覆: 1

2007-03-21 6:31 am

有關d orbital

Ng

回覆: 2

2007-03-21 1:33 am

其實oxidation state係指..........

Ng

回覆: 1

2007-03-21 12:19 am

點解話彭定康為千古罪人呢??

Ng

回覆: 2

2007-03-20 8:26 am

想問有關拆蔣介石銅像(延伸)

Ng

回覆: 1

2007-03-16 5:07 am

好唔明白左派右派

Ng

回覆: 3

2007-03-15 12:36 pm

點解lipid高energy過carbohydrate?

Ng

回覆: 1

2007-03-12 9:07 pm

有關童軍扎作(營藝) PLEASE HELP ME; )

Ng

回覆: 1

2007-02-12 11:58 pm

Electrochemical series vs Reactivity series

Ng

回覆: 1

2007-02-04 7:24 am

有關rvmb格式問題

Ng

回覆: 2

2007-02-02 12:53 am

簽卡迎新禮品

Ng

回覆: 2

2006-12-16 6:59 pm

好基本的bio 問題...哈

Ng

回覆: 2

2006-12-14 9:59 am

H2SO4

Ng

回覆: 3

2006-12-11 2:43 am

究竟水係咪酸?

Ng

回覆: 3

2006-12-08 7:32 pm

有冇convalent compound

Ng

回覆: 1

2006-11-28 7:43 pm

Sodium chloride係咪帶有鹼性?

Ng

回覆: 1

2006-11-28 6:56 pm

點解SO2係最stable state rather than SO??

Ng

回覆: 1

2006-11-28 5:46 pm

hydrolysis的條件?

Ng

回覆: 2

2006-11-28 5:22 pm

歧化現象 ----- 20分

Ng

回覆: 3

2006-11-28 2:14 am

有冇分別,呢d鹼

Ng

回覆: 2

2006-11-28 2:11 am

想問NaOH的Property

Ng

回覆: 1

2006-11-22 7:49 am

Predict on chemical reaction

Ng

回覆: 2

2006-11-21 10:59 pm

有關胃藥active ingredient