CE chem

MatthewChor

Originally posted by TAMTOM at 2005-5-17 01:21 PM:

你想要邊個版本..個面好多咩chem 神<--吹到鬼咁勁

so many versions?

2076

去左對, 錯4題
第2題睇唔到two molecules
唔明43條why 2錯, 唔通係個state???

[ Last edited by 2076 on 17-5-2005 at 01:25 PM ]

TAMTOM

Originally posted by MatthewChor at 2005-5-17 13:23:
so many versions?

我一去睇就 3-4 個版本

MatthewChor

Originally posted by 2076 at 2005-5-17 01:24 PM:
去左對, 錯4題
第2題睇唔到two molecules
唔明43條why B錯, 唔通係個state???

reversible~

pancake

pp1 quite hard i think

2076

Originally posted by TAMTOM at 2005-5-17 01:26 PM:

我一去睇就 3-4 個版本

bio有起碼20個版本

MatthewChor

Originally posted by TAMTOM at 2005-5-17 01:26 PM:

我一去睇就 3-4 個版本

which questions different ar?

post in here la

2076

Originally posted by MatthewChor at 2005-5-17 01:26 PM:

reversible~

唔係有C 同H2O已經可以開始reaction?

pancake

Originally posted by 2076 at 2005-5-17 01:24 PM:

第2題睇唔到two molecules


[ Last edited by 2076 on 17-5-2005 at 01:25 PM ]

我都係

TAMTOM

Originally posted by pancake at 2005-5-17 13:26:
pp1 quite hard i think

我覺得算幾易...問得唔係好深入囉...
講到好有心得咁 ,其實我都係等死

TAMTOM

第2題係咩

alan_given

Originally posted by pancake at 2005-5-17 13:26:
pp1 quite hard i think

係?
我未試過做第二題EASSY可以咁有信心拎晒9分

SECTION B第一題計到咩AR,我超唔SURE

2076

Originally posted by TAMTOM at 2005-5-17 01:30 PM:
第2題係咩

B

alan_given

Originally posted by TAMTOM at 2005-5-17 13:30:
第2題係咩

B~SURE

2076

Originally posted by alan_given at 2005-5-17 01:30 PM:


係?
我未試過做第二題EASSY可以咁有信心拎晒9分

SECTION B第一題計到咩AR,我超唔SURE

PbO:PbO2=2:1???

TAMTOM

第2我岩喎

不過都係唔好對 ,現實太殘忍

MatthewChor

29,36...anyone can explain

MatthewChor

Originally posted by 2076 at 2005-5-17 01:30 PM:


PbO:PbO2=2:1???

yes.....2PbO + PbO2 = Pb3O4

it hv round off problem
Pb should 90.7% by mass

2076

Originally posted by MatthewChor at 2005-5-17 01:31 PM:
29,36...anyone can explain

29 cannot explain
seems that 1st statement correct but 2nd wrong

36 越底metallic bond越弱

TAMTOM

食完飯 ,到我閉關2 日KO AMaths

不過實好快又上黎 ,聽日仲約左人食lunch