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11 August, 16:06

Read the following chemical equation. Fe (s) + O2 (g) → Fe3 + O2 - What most likely happens during this reaction? Iron loses three electrons. Iron gains three electrons. Oxygen loses two electrons. Oxygen gains two electrons.

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  1. 11 August, 16:09
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    The answer is

    A. Iron loses three electrons.

    I just took the test and this is the correct answer.
  2. 11 August, 16:31
    0
    Answer: Iron loses three electrons and oxygen gain two electrons.

    Explanation:

    this reaction represents the formation of rust of Fe.

    4Fe + 3O2 → 2Fe2O3

    The Fe is oxidized by oxygen and converts from Fe (oxidation number = 0) to Fe3 + (oxidation number = 3+) that Fe loses 3 electrons. The oxygen is reduced and the oxidation state changed from 0 to 2 - that oxygen loses 2 electrons. The other 2 choices are clear to be wrong.
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