用戶25529

[匿名]

回覆: 3

2012-02-21 2:49 am

螺的黏液的成份係咩

Crystal

回覆: 2

2012-02-21 1:05 am

f4 chem (mole)

SuperWind

回覆: 3

2012-02-23 8:24 am

F4 chemistry acid and alkalis

[匿名]

回覆: 4

2012-02-23 2:39 am

F.1 science

[匿名]

回覆: 5

2012-02-22 4:30 am

火水及煤氣,那一種是優質燃料

Man Lai

回覆: 1

2012-02-09 5:21 am

Drawing of complex compound

[匿名]

回覆: 2

2012-02-08 6:57 am

溫度對酶活性的影響

Anonymous

回覆: 2

2012-02-05 7:23 pm

Is carbon dioxide symmetrical?

用戶200605

回覆: 4

2012-02-02 10:02 am

[[[急]]]]如何把牛奶中的鈣含量(準確的驗出數量)

[匿名]

回覆: 1

2012-02-01 6:50 am

about double salt, FeSO4•(NH4)

[匿名]

回覆: 2

2012-02-01 9:06 pm

S2O32- 變 SO42- / S4O62-?

[匿名]

回覆: 4

2012-01-23 6:52 am

Name this carbon compound.

[匿名]

回覆: 3

2012-01-15 9:14 pm

化學巨型離子結構

[匿名]

回覆: 2

2012-01-16 2:22 am

温度上升難易度

[匿名]

回覆: 1

2012-01-07 1:11 am

Sodium chloride

勇の超能部

回覆: 2

2011-12-07 5:35 am

question about rusting of Fe

[匿名]

回覆: 3

2011-11-22 7:18 am

分散力大小

[匿名]

回覆: 2

2011-11-09 9:01 pm

help me sos

[匿名]

回覆: 2

2011-11-09 5:17 am

Dative / normal covalent bond

Cherrie

回覆: 1

2011-10-09 10:30 pm

what is 名詞 i dont no

[匿名]

回覆: 3

2011-10-13 3:17 am

Cr 到底有幾多隻手?

MuMu

回覆: 3

2011-10-08 8:21 pm

有關甲殼素(chitosan)不能溶於水的問題? 有冇專家

知識就是力量

回覆: 3

2011-10-03 5:09 am

Organic chemistry (1)

知識就是力量

回覆: 2

2011-10-03 6:16 am

Organic chemistry (2)

[匿名]

回覆: 3

2011-10-03 12:56 am

氰化物在哪可買到?

[匿名]

回覆: 1

2011-09-24 6:56 am

化學hybridization

yau19951026

回覆: 2

2011-09-23 4:11 am

atomic structure question

[匿名]

回覆: 2

2011-09-21 5:57 am

有關Hazard warning label 一問

[匿名]

回覆: 2

2011-09-23 1:36 am

急!!!澱粉轉成葡萄糖 當中如何轉成&why?

yu hin

回覆: 3

2011-09-17 8:20 pm

有二個步驟睇唔明 , 想解一下點解會跳到個步 ?

[匿名]

回覆: 2

2011-09-12 4:37 am

mathematics(Rate)

[匿名]

回覆: 2

2011-09-11 6:21 pm

Any compound drink?

[匿名]

回覆: 2

2011-09-09 2:00 am

有關化學平衡方程式,Help!!!!

一個青檸

回覆: 4

2011-09-03 5:36 am

數學知識交流---繁分數

輸死朕喇

回覆: 3

2011-09-03 11:27 pm

chem -- elements

[匿名]

回覆: 3

2011-08-30 6:34 am

呢2題化學計算點做

[匿名]

回覆: 1

2011-08-23 12:33 am

請問離子電鍍是什麼?

wong

回覆: 3

2011-08-27 8:54 am

化學反應(redox)

[匿名]

回覆: 2

2011-08-26 10:54 pm

MC OF REDOX

網路上的路人甲

回覆: 2

2011-08-25 12:21 am

SODIUM HYDROXIDE STANDARD SOLU

Ng

回覆: 4

2011-08-23 8:19 pm

iron react witn acid

[匿名]

回覆: 3

2011-08-24 2:56 am

alkyl group

[匿名]

回覆: 2

2011-08-22 4:05 am

唔識做呀 > < 教下我丫 #_# sci

Xxx

回覆: 3

2011-08-16 10:05 pm

chemistry chemistry asking 20p

[匿名]

回覆: 1

2011-08-07 4:34 am

中4化學知識

一個青檸

回覆: 2

2011-08-04 12:07 am

數學知識交流---模運算 (2)

ANNE

回覆: 2

2011-08-03 11:15 pm

數學知識交流---求證

[匿名]

回覆: 4

2011-08-03 9:37 pm

Chemistry

用戶28513

回覆: 2

2011-07-30 9:45 pm

生鏽東西可否除鏽?如何做到?

[匿名]

回覆: 2

2011-07-28 8:08 pm

Chemistry - crystallisation(2)