用戶4366

winghim

回覆: 1

2006-11-05 8:36 pm

關於正律問題!

[匿名]

回覆: 2

2006-11-05 4:21 am

potassium permanganate vs potassium dichromate

[匿名]

回覆: 3

2006-11-05 12:31 am

standard solution應該放在burette/ conical flask內?

用戶190541

回覆: 2

2006-11-04 8:09 pm

evaporation and boiling

gavin

回覆: 2

2006-11-04 8:56 pm

Urgent! Chemistry MC [ Molar Volume ]

Acht

回覆: 2

2006-11-04 9:03 pm

dihydrogen oxide係咩黎?

[匿名]

回覆: 2

2006-11-03 6:10 pm

Buffer question - very hard, 15points

[匿名]

回覆: 2

2006-11-03 6:11 pm

ks of SrCrO4 question, hard 20 point

[匿名]

回覆: 2

2006-11-03 10:16 am

Chemistry (University)

[匿名]

回覆: 3

2006-11-03 6:55 am

製備高錳酸鉀標準溶液的步驟

[匿名]

回覆: 2

2006-11-03 2:21 am

F4 neutrallization (salt)問題 ..~~幫幫我,thx .

N

回覆: 2

2006-11-03 2:39 am

氰化鉀ge問題

[匿名]

回覆: 1

2006-11-03 2:55 am

1.6克水中含多少克氫元素？多少克水中含８克氫元素？

創意

回覆: 3

2006-11-02 2:35 am

為何+,-相吸??? ---- 10分!

用戶98859

回覆: 1

2006-11-02 3:17 am

如何製備標準溶液

2003

回覆: 2

2006-11-01 5:13 am

what is hydrolysis

2003

回覆: 1

2006-11-01 5:39 am

endothermic reaction

2003

回覆: 1

2006-11-01 2:30 am

separating funnel

kl

回覆: 1

2006-11-01 2:44 am

molar volume calculations..HELP..

[匿名]

回覆: 3

2006-11-01 1:56 am

silver nitrate+sodium chloride-bromide條equation係什麼？

goodaskmansir

回覆: 1

2006-10-31 6:27 pm

Chemistry (Light problem)

用戶7636

回覆: 1

2006-10-31 7:42 am

LPG ( liquify Petroleum gas )

[匿名]

回覆: 1

2006-10-31 12:15 am

當aldehyde遇到water會點？

Joanne

回覆: 1

2006-10-31 2:59 am

化學問題.....快....快

kaming0614

回覆: 2

2006-10-31 6:13 am

HELP!...

[匿名]

回覆: 2

2006-10-31 5:53 am

chemical cell

Wai Ling

回覆: 1

2006-10-31 4:32 am

H2SO3 sulphurous acid

[匿名]

回覆: 4

2006-10-31 5:25 am

F4 chem正負極一問~~~

西瓜

回覆: 4

2006-10-31 5:22 am

請問"矽"的化學符號係咩

youlikeido

回覆: 3

2006-10-30 5:14 am

f.4 a math

mrecore

回覆: 2

2006-10-30 2:46 am

naming organic compound(urgent!!!)

[匿名]

回覆: 5

2006-10-30 2:57 am

chem問題一條...~~~

[匿名]

回覆: 2

2006-10-30 3:14 am

氯與氯水為何酸鹼性不同?

用戶175539

回覆: 1

2006-10-30 12:15 am

polar , non polar

[匿名]

回覆: 4

2006-10-29 5:44 am

maths

喵喵

回覆: 2

2006-10-29 12:55 am

有功課唔識

2003

回覆: 2

2006-10-28 9:13 pm

Physics HEAT

用戶139375

回覆: 1

2006-10-27 6:31 am

關於 standardized with sodium oxalate

用戶167672

回覆: 1

2006-10-26 5:15 pm

what is concurrent force??

2003

回覆: 1

2006-10-26 1:56 am

carbon compund

[匿名]

回覆: 1

2006-10-26 1:58 am

Electrolysis of potassium iodide

[匿名]

回覆: 5

2006-10-25 9:23 pm

75%酒精加了甘油後, 是否不再是75%?

[匿名]

回覆: 1

2006-10-25 7:35 am

中五化學測驗問題

用戶113727

回覆: 2

2006-10-25 5:52 am

f.4 maths

[匿名]

回覆: 2

2006-10-25 3:37 am

sodium thiosulpate

2003

回覆: 1

2006-10-25 2:32 am

subsitution reaction

Yip

回覆: 1

2006-10-25 2:19 am

potassium permanganate vs ammonium iron(Ⅱ) sulphate(Ⅵ)

牛屎

回覆: 3

2006-10-24 7:00 am

把水電解的化學用品

Peng

回覆: 2

2006-10-24 3:48 am

電容題目(10分)

[匿名]

回覆: 1

2006-10-24 4:39 am

electric----hurry...Thx