define oxidation ❤✔✔
Answers
Explanation:
Oxidation Definition
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.
An example of a reaction is that between hydrogen and fluorine gas to form hydrofluoric acid:
H2 + F2 → 2 HF
In this reaction, hydrogen is being oxidized and fluorine is being reduced. The reaction may be better understood if it is written in terms of two half-reactions.
H2 → 2 H+ + 2 e-
F2 + 2 e- → 2 F-
Answer:
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Oxidation numbers are assigned to individual atoms within a molecule. So, the fact that there are 2H2O in an equation doesn't affect the oxidation numbers of the individual atoms. So, in H2O, whether you have one molecule or a bathtub full, H has an oxidation number of +1 and O has an oxidation number of -2.
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