Mock for CE guys 2 (ans)

Zend

glucose ge structure 本身知左的話... 應該會易分d
基本上electronegativity 係一個分O.N 的好方法~~

777kong

can u show me the order of electronegativity?

Zend

原帖由 777kong 於 27-4-2008 07:56 PM 發表
can u show me the order of electronegativity?

I am sure there are plenty of sources on the net..

777kong

but can you remember the order of F Cl N O ??

Zend

原帖由 777kong 於 27-4-2008 08:00 PM 發表
but can you remember the order of F Cl N O ??

I do, so ?

777kong

would u mind telling me,please

Zend

原帖由 777kong 於 27-4-2008 08:04 PM 發表
would u mind telling me,please

N, Cl, O, F

N, O, F are so-called highly-electronagative atom
chlorine , although has a greater value on EN, due to it size (it is a period III element), it does not possess some special characteristics e.g. formation of hydrogen bonding among adjacent molecules.
anyway, if you are not an AL guy, u are not required to know these stuff.

octopus001

我死的 岩岩做左  得幾條岩.. 聽日chem 冇希望 ..
救救me ....
Q2why D錯?
Q3WHY(1)錯?
Q9WHY(1)錯?
Q10(1)WHY是REDOX
Q14WHY B NOT A?
Q15WHY D? DELTA H<0 唔係EXO咩..?
Q16可以ADDITUON又可以THERMOSET GA咩 ?
Q20WHY 唔係CONDENSATUON?
Q21WHY? B黠解唔岩?

L.K.

2.)因為a岩  ethonal is neutral 麻....
所以d錯.

3.)density同mass冇關係...

[ 本帖最後由 L.K. 於 28-4-2008 12:31 編輯 ]

piyopiyo

Q2 neutral means [H+] = [OH-] ??
Q3 high atomic mass =/=high density,CO2(g) is less dense than H2O(l)
Q9 dunno[[tk_21]]
Q10 爬文pls
Q14 C ar.... Fe2+ readily forms Fe3+
Q15 調番轉...
Q16 dunno
Q20 condensation只會合成再eliminate small molecules
Q21 the liquid can be mixture...