L.K. 發表於 27-4-2008 21:15:47

06 ce 15,22 新增第45題

[] 06 ce 15,22

[ 本帖最後由 L.K. 於 29-4-2008 16:57 編輯 ]

piyopiyo 發表於 27-4-2008 21:18:38

15. A... Na2SO3 reduce Br2... Na2SO3 + 2HCl ---> 2NaCl + SO2 +H2O

22.must be 1 only -.-...

L.K. 發表於 27-4-2008 21:24:28

回復 2# 的帖子

why reduce.....
22.)佢邊到有neutralisation

[ 本帖最後由 L.K. 於 27-4-2008 21:25 編輯 ]

piyopiyo 發表於 27-4-2008 21:27:30

原帖由 L.K. 於 27-4-2008 21:24 發表 http://www.nakuz.com/bbs/images/common/back.gif
why reduce.....
22.)佢邊到有neutralisation
15. SO3 2- is RA
If I remember correctly,scrubbers make use of CaO []

L.K. 發表於 27-4-2008 21:36:06

CaO+SO2------>CaSO3is neutralisation ?

[S]【YU】 發表於 27-4-2008 22:02:55

nono
srubber = spray alkaline solution to neutralize acidic gas by principle.
SO2 +H2O -> H2SO3(aq) and is neutralized.

(2) redox...neutralization does not need catalyte
(3) precipitation

Puppet 發表於 27-4-2008 22:10:55

原帖由 【YU】 於 27-4-2008 22:02 發表 http://www.nakuz.com/bbs/images/common/back.gif
nono
srubber = spray alkaline solution to neutralize acidic gas by principle.
SO2 +H2O -> H2SO3(aq) and is neutralized.

(2) redox...neutralization does not need catalyte
(3) precipitation
有dry scrubber
CaO(s) + SO2(g) ---> CaSO3(s) which is neutralization

L.K. 發表於 27-4-2008 22:18:54

Cu(OH)2 is solid??

Zend 發表於 27-4-2008 22:24:49

我考果年, 我都係唔好插手答啦 XD

L.K. 發表於 27-4-2008 22:26:26

回復 9# 的帖子

一定識哂LA
教我..
頁: [1] 2
查看完整版本: 06 ce 15,22 新增第45題