natalieperalta88
14.07.2019 •
Chemistry
For the reaction shown, identify the oxidation half-reaction and the reduction half-reaction. kno3 → kno2 + o2 which pair of half-reactions represents the balanced half-reactions?
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Ответ:
- Oxidation half reaction is
and the reduction half reaction is
Explanations:- Oxidation number of nitrogen in nitrate(reactant side) is +5 and in nitrite(product side) it is +3. Here the oxidation number of nitrogen is decreasing from 5 to 3 which is reduction.
As per rules, oxidation number of oxygen in it's compounds is -2 and in elemental form it is 0. So, for the given reaction the oxidation number of oxygen is increasing from -2 to 0 which is oxidation.
The balanced chemical equation is,
Ответ: