求解
點解會釋出棕色煙霧??
同埋咩係半反應式??
(10點)化學(HKCEE 2003 PART1 7a i)
2012-02-19 8:33 pm
回答 (1)
2012-02-19 8:48 pm
✔ 最佳答案
The properties of Br2 will produce brown gasHalf equation is used when balancing equation. You need to calculate the difference between the number of electron transfered in the two respective half equations to make out a chemical equation. I believe it is 2Br-(aq) --> Br2 (g) + 2e-
參考: common sense, by F4 chem student
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