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Hatshy [7]
2 years ago
8

In a redox reaction, why does an element's oxidation number increase

Chemistry
1 answer:
Kazeer [188]2 years ago
5 0
If the element is oxidized, then it's oxidation number would increase.

Let's say we have the following reaction.
2H2O --> O2 + 2H2

To the left, the oxidation number of O is -2, as it is bonded to two H, which is always H+. To the right, we have O2, and all gases have a oxidation number of 0 (zero). We say that O has been oxidized. 
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The metal tantalum becomes superconducting at temperatures below 4.483 K. Calculate the temperature at which tantalum becomes su
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Answer:

The correct answer is "-268.667°C".

Explanation:

Given:

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= 4.483 K (below)

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By putting the values, we get

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