[DSE化學2018]同學準備好DSE CHEM未?

1001 回覆
89 Like 24 Dislike
2017-12-30 22:26:01
所以OF2都會explosive? 咁點解NF3唔會爆炸但NCl3 會, F is the most electronegative atom.
2017-12-30 22:28:57
SF6 係stable,我覺得主要識common examples 就夠,syllabus 寫只要識劃molecules with central atoms not obeying octet rule and with no lone pair of electrons, 呢課主要應該考shape of molecule instead of their reactivity
2017-12-30 22:29:15
corrosive係general meaning黎
指damage other substances
所有acid只要濃度夠都係corrosive
唔需要dehydrating/oxidizing
Na算係corrosive
溶水出corrosive solution
2017-12-30 22:33:19
唔係low polarity,直頭係Non polar
2017-12-30 22:33:54
OF2 is much more stable than OCl2
2017-12-30 22:35:54
DSE 唔駛迫
MO 解
S: common oxidation state: +2 +4 +6
通常form 2 4 6 枝bond
但如果form 到3枝 5枝 通常都唔stable
2017-12-30 22:39:13
NO2 得17 粒電子 實係radial
ClO2 有2 無radial
2017-12-30 22:41:01
ClO2 係radical 7+6+6 係單數
2017-12-30 22:42:05
眼殘睇錯 Cl2O
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