作者shadowlin (我是球球的女朋友)
看板TransBioChem
标题[化学] 97年中兴普化考古题
时间Mon Jun 29 11:44:41 2009
3.
Whoch of the following pairs in aqueous solution could not produce
precipitate?
(a)Al(NO3)3/Ba(OH)2
(B)Hg(NO3)2/CuSO4
(C)CaCl2/NaSO4
(D)FeSO4/KCL
23.
Which of the following compounds are insoluble in acidic solution than in pure
water?
(a)AgCN
(B)ZnS
(C)AL(OH)3
(DPbI2
27.
Which electron on an atom of copper would have the hightest value of W
in the Boltzmann formula?
(a)3s (b)3d (c)4s (d)4p
31.
consider a bimolecular reaction in the gas phase .Which one of the following
changes in condition will not cause an increase in the rate of the reaction?
(a)add a catalyst
(b)increase the temperature at constant volume
(c)increase the volume at constant temperature
(d)all of the above will increase the rate of reaction
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◆ From: 122.125.162.129
※ shadowlin:转录至看板 Chemistry 06/29 17:46
1F：推 faraday825:我只会27题 所以提供我的想法 有错请指正 谢谢 06/30 15:10
2F：→ faraday825:W应该指的是"可能形成的状态数目" 所以我选b 06/30 15:11
3F：→ shadowlin:谢谢你!!我懂了 06/30 16:19
4F：推 ghyujm:3.a 23.d 31.c 06/30 22:06
5F：推 ghyujm:第三题我写错罗 请见下面有板友解答 06/30 22:08
6F：推 faraday825:楼上 可以请教你23题的观念吗 因为我不会 谢谢XD 06/30 22:53
7F：→ shadowlin:盐类阴离子如果是弱酸根, 酸性环境下会被质子化, 07/01 06:55
8F：→ shadowlin:造成该盐类解离平衡移动,把阴阳子分开,分别判对酸硷 07/01 06:58
9F：→ shadowlin:(A)酸/硷 (B)酸/硷(C)酸/硷(D)酸/中 07/01 07:09
10F：推 ghyujm:23题的观念是 酸式盐在酸中不容易溶解 ^^ 07/01 22:16