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Study this chemical reaction: 2Fe + 3I2---> 2FeI3 Then, write balanced half-reactions describing the oxidation and...

Study this chemical reaction:

2Fe + 3I2---> 2FeI3

Then, write balanced half-reactions describing the oxidation and reduction that happen in this reaction.

oxidation:
reduction:

Solutions

Expert Solution

chemical reaction:

2Fe + 3I2---> 2FeI3

0            0    Fe: +3, and I -1

In this reaction , the oxidation number of Fe increases from 0 to +3 means that is oxidized and I is o to -1 means that is reduced.

Oxidation:

Fe ----- > Fe3+     + 3e-

I2 + 2e-   ----à 2I-

Oxidation-reduction reaction or redox reaction:

A reaction in which one reactant is oxidized and another is reduced.

Oxidation:

Oxidation is a process in which either 1 or all following changes occurs:

  1. Gaining of oxygen atoms
  2. Loss of electrons
  3. Loss of hydrogen atom.
  4. Increasing oxidation number.

Reduction:

Reduction is a process in which either 1 or all following changes occurs:

  1. Loss of oxygen atoms
  2. Gaining of electrons
  3. Gaining of hydrogen atom.
  4. Decreasing oxidation number.

Oxidation and reduction process are reverse process.

queen_honey_blossom answered 2 years ago
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