用戶201930

[匿名]

回覆: 2

2007-10-29 6:12 am

電磁波真空時的速率是多少

[匿名]

回覆: 2

2007-10-25 7:46 am

questions about 2 simple experiments

最強的史迪仔

回覆: 2

2007-10-20 2:01 am

Density

用戶213693

回覆: 2

2007-10-28 7:00 pm

thermometric titration ( tas)

[匿名]

回覆: 2

2007-10-24 9:28 am

馬克士威爾的電磁學係咩書可以學到？

Jerry

回覆: 2

2007-10-23 5:56 am

Standardization of potassium manganate(VII) exp question

Tsz Kwan

回覆: 2

2007-10-18 5:42 am

火焰的顏色的種類&大約有的溫度.

用戶19864

回覆: 2

2007-10-25 4:26 pm

cHEMISTRY!!

[匿名]

回覆: 4

2007-10-27 3:25 am

將水重復煲有咩問題

.

回覆: 2

2007-10-27 1:34 am

請列舉出化學物質的特性，名稱(中英對照)，符號和用途!!

.

回覆: 4

2007-10-27 1:25 am

蟑螂絕種了!!!是好是壞???

[匿名]

回覆: 2

2007-10-15 1:59 am

about ionization

[匿名]

回覆: 2

2007-10-19 7:54 pm

9% 醋酸 約 pH 值幾多?

[匿名]

回覆: 2

2007-10-18 4:37 am

化學題一問........

Summer

回覆: 2

2007-10-15 11:53 am

define chemical plating

Summer

回覆: 2

2007-10-15 11:54 am

define chemical plating

用戶109850

回覆: 2

2007-10-11 5:28 am

點解脂肪既能量多過碳水化合物?

風影

回覆: 2

2007-10-09 6:19 am

如何正確使用工業酒精?

[匿名]

回覆: 2

2007-10-04 6:33 am

fill in the blanks about a science question

人

回覆: 2

2007-10-13 5:50 pm

化學廢物是什麼？

man ning

回覆: 2

2007-10-08 12:35 am

atomic specturm

Sing

回覆: 2

2007-10-15 5:23 am

what is Acrylic plastic sheet (10 marks)

lucifer

回覆: 2

2007-10-06 10:28 am

多少大的太陽能板 先能夠直接令一粒4.5v 35ma 既白光led 著 而且係充足既光

[匿名]

回覆: 2

2007-10-06 11:34 pm

Magnetic Stirrer

用戶208725

回覆: 2

2007-10-11 10:26 pm

Carbon Dioxide Emissions

[匿名]

回覆: 2

2007-10-09 8:18 pm

why the photato will explodes ? plx help me!

magic

回覆: 2

2007-10-08 12:05 am

chemistry questions

[匿名]

回覆: 2

2007-10-04 6:12 am

a question about Superheating

[匿名]

回覆: 2

2007-10-03 5:29 am

a question about microwave oven

[匿名]

回覆: 2

2007-10-03 5:19 am

a question about the method of heat transfer

[匿名]

回覆: 2

2007-10-03 5:37 am

fill in some words ( about science )

[匿名]

回覆: 2

2007-10-02 7:18 am

a question about the method of heat transfer

最強的史迪仔

回覆: 2

2007-09-27 8:24 am

hoffman voltameter

Kiki

回覆: 2

2007-10-07 6:50 am

What is the boiling point of 2-methylpropane-2-ol ?

追風箏的孩子

回覆: 7

2007-10-11 8:12 am

我好眼訓, 但我仲有好多功課未做呀? 點算呀?

追風箏的孩子

回覆: 4

2007-10-11 8:10 am

(40) 中學生應否帶手提電話回校?

Wing Yin

回覆: 2

2007-10-07 8:25 am

structure of the complex formed by iodine and starch

用戶207252

回覆: 2

2007-10-06 8:15 pm

S.6 chem. about primary standard sol

Emily

回覆: 2

2007-10-06 6:42 pm

About gases

[匿名]

回覆: 2

2007-10-09 7:33 pm

錳與氧化錳的分別

Charlotte

回覆: 3

2007-10-10 2:09 am

20度既水同酒溝埋唔係20度???[20 20 20分]

用戶206128

回覆: 2

2007-10-06 3:30 am

化學????????

[匿名]

回覆: 2

2007-10-09 3:52 am

香港離紐約,東京多遠?

kelly

回覆: 2

2007-10-09 3:58 am

a word equation for burning LPG

用戶207211

回覆: 2

2007-10-06 6:28 am

我想問下所有化學符號的分子式，多謝！

[匿名]

回覆: 2

2007-09-27 6:07 am

Question about Mass spectrometer

f3b

回覆: 2

2007-10-02 8:23 am

physic ( question need to explain )

用戶192275

回覆: 2

2007-10-03 8:07 am

F.6 chemistry Q

[匿名]

回覆: 2

2007-10-02 7:16 am

chem question~please help

用戶204255

回覆: 2

2007-09-24 2:18 am

大學選咩系?