作者sunshineivy (小阳)
看板Chemistry
标题[问题] carbonates分解温度
时间Sun Jan 15 22:08:47 2012
Which of the following carbonates has the highest enthalpy of decomposition?
(A) Na2CO3 (B)K2CO3 (C)BeCO3 (D)CaCO3 (E)SrCO3
答案是B
请问为什麽?
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◆ From: 125.229.173.193
1F:→ windsspirit:1+ > 2+ ; radius:K > Na 01/15 23:39
2F:→ windsspirit:从答案推,即可知其规律 01/15 23:44
3F:→ bengic:这题目眼熟眼熟的.... 01/16 18:10
4F:→ cuteharbor:fajan's rule 01/17 01:42
5F:→ KKlin813:实验结果。 01/20 02:38