1. Complete and balance the following equations. Describe any observable change you expect in each case.
(a) Cr2O7^2-(aq) + Fe^2+(aq) + H^+(aq)
關於Oxidation and reduction的化學問題
2009-03-01 5:33 am
回答 (1)
2009-03-01 9:24 am
✔ 最佳答案
Cr2O72-(aq) + 14H+(aq) + 6Fe2+(aq) → 2Cr3+(aq) + 7H2O(l) + 6Fe3+(aq)
When the orange solution of acidified Cr2O72- and the pale green solution of Fe2+ are mixed, the solution changes to yellow green (the mixed colour of green Cr3+ and yellowish brown Fe3+).
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