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原帖由 octopus001 於 28-4-2008 12:11 發表
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
2. Neutral iff [H+] = [OH-]
pH of pure water < 7 at a temp. higher than room temperature.
3.
In groups I and II, the density of metal decreases down the group. Metallic bond strength decreases.
9. Dissolving salts is normally endothermic e.g. KI, NaCl
4.
Cond/Add 係polymerization模式的分法
Thermoplas/Thermoset係對熱soften與否的分法
冇人話Addition唔可以係thermoset
20. The water is formed from neutralization
[ 本帖最後由 Puppet 於 28-4-2008 21:00 編輯 ] |
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