In the following reaction, which element is oxidized and which is reduced?

The answer to your question is:    Iron oxidizes and Copper reduces

Explanation:

An element oxidizes when it loses electrons

An element reduces when it gains electrons

Then

             Fe    ⇒    Fe⁺²       Now, is more positive, it loses electrons

            Cu⁺²  ⇒    Cu         Now, is more negative, it gains electrons

         Iron oxidizes and Copper reduces

1. a)c-14 has two more protons

2. d)they have different numbers of protons, neutrons, and valence electrons; they are all gases at room temperature.

3. c) iron and nickel.

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