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kodGreya [7K]
2 years ago
5

How many total electrons are in a Fe2 ion?

Chemistry
1 answer:
Rina8888 [55]2 years ago
8 0
Electronic distribution of iron Fe²+

1s^2,2s^2,2p^6,3s^2,3p^6,3d^6,4s^2

26 -  2 = 24 electrons

hope this helps!

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Answer:

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Reduction is the gain in electron. A chemical specie that undergoes reduction is called the oxidizing agent.

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The first specie is the NO2-. In this specie, the oxidation number of nitrogen changed from +3 to +5 in NO3-. Thus we can see that there is more loss of electron to have caused an increase in the oxidation number positively. This shows an oxidation. Hence, NO2- is the reducing agent.

Let us look at the chromium. We can see that the oxidation number of chromium changed from +7 to +3.

Now we can see that it is a decrease and hence, it is a gain of electron and thus it is reduction. This means the first chromium specie is the oxidizing agent.

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4 0
3 years ago
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