Uncle Michael

chu

回覆: 1

2007-03-30 2:07 am

想知道某幾隻 metal oxide & hydroxide 有邊隻可溶於水 & 顏色

STEVIE-G™

回覆: 1

2007-03-29 10:55 pm

點解用碳酸鹽分辦唔到濃硝酸同濃硫酸??

A student

回覆: 1

2007-03-29 4:17 am

Vitamin C ........ Pros come here!

Silvia

回覆: 2

2007-03-28 5:23 am

f.4 chemistry

[匿名]

回覆: 1

2007-03-25 1:58 am

牛奶喝完,可以馬上喝沙士嗎?

hello

回覆: 2

2007-03-23 7:59 am

[Chem] chemical equation

[匿名]

回覆: 2

2007-03-23 3:07 am

extract copper from compound: CuCO3 + Cu(OH)2?

用戶4713

回覆: 2

2007-03-23 12:50 am

洗水箱(漂白問題)

YA! HOO!

回覆: 2

2007-03-22 12:41 am

some chemical equation type and mechanism

Gee

回覆: 1

2007-03-21 6:39 am

咩係「緩慢氧化」??

Ng

回覆: 1

2007-03-21 6:31 am

有關d orbital

[匿名]

回覆: 1

2007-03-21 5:36 am

強鹼加入花生油，會變成肥皂。然後再加入同等份量的強酸，會否變回花生油？

[匿名]

回覆: 2

2007-03-20 8:42 pm

燒炭之另類原理

YA! HOO!

回覆: 1

2007-03-20 9:08 am

The difference between the bond enthalpy of HF and F2

[匿名]

回覆: 2

2007-03-20 4:03 am

can help me to do this CHEM 問題

用戶117714

回覆: 1

2007-03-19 6:54 pm

chem molarity

心花

回覆: 1

2007-03-19 3:28 pm

electron configuration of Pd

STEVIE-G™

回覆: 3

2007-03-19 5:38 am

化學問題[石油及摩爾](超難)

[匿名]

回覆: 2

2007-03-17 8:53 am

R-CHOH-CH3 + I2, NaOH 會變咩?

2003

回覆: 1

2007-03-17 1:56 am

aluminium anodization

2003

回覆: 2

2007-03-17 1:59 am

ethanoic acid

用戶141823

回覆: 1

2007-03-16 6:16 am

Form 4 Chemistry

[匿名]

回覆: 2

2007-03-15 2:16 am

TAS--Comparison of rates of hydrolysis of Halogeno-compounds

彤彤

回覆: 2

2007-03-14 6:48 am

chem QQ

用戶140614

回覆: 2

2007-03-14 5:53 am

CHEM question

Chiu Hung

回覆: 2

2007-03-14 4:43 am

咩叫 anti-acid?

ching

回覆: 1

2007-03-14 3:37 am

摩爾數再一check

用戶172983

回覆: 2

2007-03-13 6:42 am

原子是氣態嗎??

班戟小子

回覆: 4

2007-03-13 5:04 pm

電芯用完會唔會輕左？

[匿名]

回覆: 1

2007-03-12 3:00 pm

solubility and pH (word problem)

[匿名]

回覆: 2

2007-03-12 5:21 am

想問化學式

alan

回覆: 1

2007-03-12 4:40 am

鹽一問...

alan

回覆: 1

2007-03-12 4:39 am

鹽一問...

Silvia

回覆: 1

2007-03-12 3:49 am

f.4 chemistry

kint

回覆: 1

2007-03-12 1:12 am

稀酸的導電性能

Yan Kit C

回覆: 1

2007-03-11 9:27 pm

energetics 問題

kwan

回覆: 1

2007-03-10 9:50 pm

Concept confirmation about acid

[匿名]

回覆: 2

2007-03-10 2:50 am

甚麼是共用電子對

Debbie

回覆: 3

2007-03-09 6:17 pm

“腰”字問題

[匿名]

回覆: 2

2007-03-09 2:15 am

化學magnesium一問

Yu Lai

回覆: 3

2007-03-08 9:49 pm

鏹水既成份係咩呀?

[匿名]

回覆: 1

2007-03-08 2:14 am

用酒精來溶化油脂後, 是否油脂依然存在皮膚上 (或皮膚中)?

hello

回覆: 1

2007-03-08 10:49 am

[Chem]About a bromine clock reaction

STEVIE-G™

回覆: 2

2007-03-08 7:42 am

超難摩爾計算題

2003

回覆: 2

2007-03-06 12:31 am

addition reaction

用戶109462

回覆: 1

2007-03-06 7:38 am

Chem 高手請答**

hilda

回覆: 1

2007-03-06 4:05 am

molecules problems

用戶20667

回覆: 2

2007-03-05 9:32 pm

高錳酸鉀 和 重鉻酸鉀 的問題? 中五問

用戶159712

回覆: 2

2007-03-05 2:21 am

吾知有咩反應???急

[匿名]

回覆: 1

2007-03-04 2:07 am

A bromine clock reaction