Question

Write a balance reduction half -reaction similar to C/2+2e- for each of the follwoing non metals....

Write a balance reduction half -reaction similar to C/2+2e- for each of the follwoing non metals. I2, N2, S8

Homework Answers

Answer #1

Answer – We are given the balanced half -reaction of Cl2 + 2e- -----> 2Cl- and we need to write the balanced half -reaction of N2, I2 and S8

We know there are two type of half-reaction first one is oxidation half -reaction and second one is reduction half -reaction. The above given one is reduction half -reaction, since when electrons gain then it is reduction process.

So the balanced half -reaction of N2, I2 and S8 as follow –

N2 + 6e- -----> 2N3-

N has 3- charge, so we need 6e- for 2 N.

I2 + 2e- -----> 2I-

For iodine there is -1 charge, so for 2 I we need 2e-

S8 + 16e- -----> 8S2-

For S there is 2- charge, so we need 2 electrons for 1 S and 16 for 8 S.

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