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The oxidation of a chemical occurs when

It loses electrons
It gains electrons
It shares electrons
All the above

Respuesta :

Answer:

Oxidation occurs when an atom, molecule, or ion loses one or more electrons in a chemical reaction. When oxidation occurs, the oxidation state of the chemical species increases.

Explanation:

oxidation is loss of electrons

here a trick to remember this

oil rig -> oxidation is loss. reduction is gain