Here's why:
* Oxidation refers to the loss of electrons by a chemical species. This loss of electrons results in an increase in the oxidation state of the atom.
* Reduction is the opposite of oxidation, where a chemical species gains electrons and its oxidation state decreases.
Together, oxidation and reduction always occur simultaneously in a chemical reaction, known as a redox reaction.
Example:
In the reaction of iron with oxygen to form iron oxide (rust):
* Iron (Fe) loses electrons (is oxidized) to form Fe³⁺ ions.
* Oxygen (O₂) gains electrons (is reduced) to form O²⁻ ions.
The overall reaction is:
4Fe + 3O₂ → 2Fe₂O₃
Let me know if you'd like more examples or have other chemistry questions!
