What is oxidation in chemical reactions?

Oxidation in chemical reactions refers to a process characterized by the loss of electrons from an atom or molecule. When a substance oxidizes, it often undergoes a change in oxidation state, typically increasing it. This concept is fundamental in understanding redox reactions, where oxidation always occurs alongside reduction, the latter involving the gain of electrons.

In various chemical contexts, oxidation can lead to the formation of oxides when substances react with oxygen. It is crucial in numerous biological and industrial processes, such as respiration, combustion, and corrosion.

The distinction between oxidation and other processes, like those involving the gain of electrons or changes that do not alter chemical structure, highlights the specific nature of oxidation. Thus, understanding oxidation as a loss of electrons is essential in the study of chemistry and related fields.