2003

2003

回覆: 2

2007-01-14 7:59 pm

rusting(best ans:awarded 40pts)

2003

回覆: 1

2007-01-14 7:56 pm

factor affecting rusting

2003

回覆: 3

2007-01-13 8:03 pm

organic compound

2003

回覆: 1

2007-01-13 2:15 am

calculation-heat

2003

回覆: 1

2007-01-12 4:12 am

precipitation-prepartion of insoluble salt

2003

回覆: 2

2007-01-12 4:10 am

CH3COO-Na+

2003

回覆: 1

2007-01-12 4:05 am

distinguish of NaCI and vinegar

2003

回覆: 2

2007-01-12 3:10 am

dialysis tubing

2003

回覆: 2

2007-01-12 3:01 am

precipitation

2003

回覆: 1

2007-01-12 2:11 am

NH3..

2003

回覆: 1

2007-01-11 3:44 am

displacement

2003

回覆: 1

2007-01-11 3:36 am

insect-eating plant

2003

回覆: 2

2007-01-11 3:35 am

diffusion/omosis

2003

回覆: 1

2007-01-11 3:32 am

burning candle

2003

回覆: 2

2007-01-06 9:15 pm

naming of hydrocarbon

2003

回覆: 2

2007-01-02 7:01 am

pollutant from car exhaust

2003

回覆: 2

2007-01-02 7:01 am

hydrocarbon

2003

回覆: 1

2007-01-02 3:14 am

naming of hydrocarbon

2003

回覆: 1

2007-01-02 3:11 am

calcium sulphite

2003

回覆: 2

2006-12-31 9:05 pm

soluble,insolube compound

2003

回覆: 1

2006-12-31 9:03 pm

Na(CI)

2003

回覆: 1

2006-12-31 9:01 pm

about water

2003

回覆: 1

2006-12-31 8:58 pm

about cracked light bulb

2003

回覆: 1

2006-12-31 4:09 am

naming

2003

回覆: 2

2006-12-27 4:31 am

strength of acid

2003

回覆: 1

2006-12-26 6:37 pm

titation1

2003

回覆: 1

2006-12-25 6:42 am

polar

2003

回覆: 1

2006-12-25 4:40 am

漢榮公眾假期開唔開?

2003

回覆: 1

2006-12-22 11:49 pm

salt.

2003

回覆: 1

2006-12-22 11:46 pm

alkali

2003

回覆: 1

2006-12-22 11:43 pm

acid.

2003

回覆: 1

2006-12-21 4:04 am

about chemical cell

2003

回覆: 1

2006-12-15 6:45 am

displacement

2003

回覆: 1

2006-12-15 6:08 am

dative covalent bond

2003

回覆: 2

2006-12-15 5:46 am

giant metallic bond

2003

回覆: 2

2006-12-11 5:58 am

pure acid q2

2003

回覆: 2

2006-12-10 1:19 am

monobasic

2003

回覆: 1

2006-12-10 12:38 am

Pure acid 10pts urgent

2003

回覆: 2

2006-12-09 2:45 am

why carbon can conduct electricity?

2003

回覆: 2

2006-12-09 2:44 am

transition metal

2003

回覆: 1

2006-12-08 9:44 pm

有咩快速鍵許度打上標下標(次方)?

2003

回覆: 1

2006-12-06 8:05 pm

加水...

2003

回覆: 3

2006-12-03 5:39 am

bio-reproduction

2003

回覆: 2

2006-11-21 5:49 am

redox

2003

回覆: 1

2006-11-19 1:04 am

relative atomic mass 係咪等於molar mass?

2003

回覆: 2

2006-11-19 12:09 am

Fleming's right hand rule

2003

回覆: 1

2006-11-18 11:43 pm

main electricity(20)

2003

回覆: 1

2006-11-18 8:31 am

a.c generator

2003

回覆: 1

2006-11-18 8:00 am

magnet

2003

回覆: 1

2006-11-18 7:46 am

做完10年pastpaper有咩好做?