Can you help me answer this redox reaction question? I'm stuck?
2018-01-22 4:55 pm
1. Write ion-electron equations for the oxidation and reduction in the following reaction. Then combine the reactions to form the overall Redox reaction. In acid solution, potassium permanganate oxidises sodium bromide.
回答 (1)
2018-01-22 5:02 pm
✔ 最佳答案
1.Reduction half-equation: MnO₄⁻(aq) + 8H⁺(aq) + 5e⁻ → Mn²⁺(aq) + 4H₂O(l) …… [1]
Oxidation half-equation: 2Br⁻(aq) → Br₂(aq) + 2e⁻ …… [2]
[1]×2 + [2]×5, and cancel 10e⁻ on the both sides. The balanced overall equation is :
2MnO₄⁻(aq) + 10Br⁻(aq) + 16H⁺(aq) → 2Mn²⁺(aq) + 5Br₂(aq) + 8H₂O(l)
收錄日期: 2021-04-24 00:59:35
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20180122085500AAxIzh8