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study.com/academy/lesson/what-is-oxidation-definition-process-examples.html

In this lesson, learn about oxidation and its process, and examine some examples of oxidation, including the mystery of browning fruit. Then, measure what you've learned with a quiz.

www.thoughtco.com/definition-of-oxidation-in-chemistry-605456

Oxidation is the loss of electrons during a reaction by a molecule, atom or ion. Oxidation occurs when the oxidation state of a molecule, atom or ion is increased. The opposite process is called reduction, which occurs when there is a gain of electrons or the oxidation state of an atom, molecule, or ion decreases.

www.thefreedictionary.com/oxidation

oxidation - the process of oxidizing; the addition of oxygen to a compound with a loss of electrons; always occurs accompanied by reduction. oxidisation, oxidization. calcination - the conversion of metals into their oxides as a result of heating to a high temperature.

www.thoughtco.com/oxidation-vs-reduction-604031

Oxidation and reduction reactions involve an exchange of electrons between reactants. For many students, the confusion occurs when attempting to identify which reactant was oxidized and which reactant was reduced. What is the difference between oxidation and reduction?

www.wisegeek.com/what-is-oxidation.htm

A freshly-cut apple turns brown, a bicycle fender becomes rusty and a copper penny suddenly turns green. What do all of these events have in common? They are all examples of a process called oxidation. When it involves oxygen, the process of oxidation depends on the amount of oxygen present in the ...

en.wikipedia.org/wiki/Redox

Thus, oxidation is best defined as an increase in oxidation state, and reduction as a decrease in oxidation state. In practice, the transfer of electrons will always cause a change in oxidation state, but there are many reactions that are classed as "redox" even though no electron transfer occurs (such as those involving covalent bonds).

biologydictionary.net/beta-oxidation

Beta oxidation takes place in four steps: dehydrogenation, hydration, oxidation and thyolisis. Each step is catalyzed by a distinct enzyme. Briefly, each cycle of this process begins with an acyl-CoA chain and ends with one acetyl-CoA, one FADH2, one NADH and water, and the acyl-CoA chain becomes two carbons shorter.

www.wisegeek.com/what-is-beta-oxidation.htm

Beta-oxidation is a metabolic process whereby fatty acids are broken down into acetyl-CoA. There are four reactions in the process, and these reactions repeat until the entire fatty acid chain has been converted into individual acetyl-CoA molecules. Each of these molecules is then processed for energy.

www.dummies.com/education/science/chemistry/redox-reactions-oxidation-and...

Redox reactions — reactions in which there’s a simultaneous transfer of electrons from one chemical species to another — are really composed of two different reactions: oxidation (a loss of electrons) and reduction (a gain of electrons). The electrons that are lost in the oxidation reaction are the same electrons that are gained in the […]

www.britannica.com/science/oxidation-reduction-reaction

Oxidation-reduction reaction: Oxidation-reduction reaction, any chemical reaction in which the oxidation number of a participating chemical species changes. The term covers a large and diverse body of processes. Many oxidation-reduction reactions are as common and familiar as fire, the rusting and dissolution of metals, the