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Oxidation

Posted: Sun Nov 24, 2019 8:46 pm
by Philip
What's an oxidation number

Re: Oxidation

Posted: Sun Nov 24, 2019 8:52 pm
by Kennedi2J
Also can anyone explain what oxidation is? And what Dr. Lavelle meant by oxidation states? I don't remember him explaining the concept in class.

Re: Oxidation

Posted: Sun Nov 24, 2019 8:53 pm
by madijohnson_4A
The oxidation number represents the number of electrons gained or lost by an element. For example, the oxidation number of oxygen in a compound is usually -2 because oxygen typically gains two electrons in a chemical reaction. However, the oxidation number of a neutral element is always zero (example O2).

Re: Oxidation

Posted: Sun Nov 24, 2019 8:56 pm
by Nare Nazaryan 1F
The oxidation number/state is the charge that cation/anion has. For example, chlorine's oxidation state would be -1 (chloride).

Re: Oxidation

Posted: Sun Nov 24, 2019 8:56 pm
by Madeline Phan 1E
An oxidation number represents the number of electrons lost or gained by an electron in a redox reaction.

Re: Oxidation

Posted: Sun Nov 24, 2019 8:57 pm
by Sydney Jacobs 1C
The oxidation number, in reference to coordination compounds and complexes, is the number of electrons gained or lost (like charge) on the metal. For example, in the ion [Cr (Cl)2 (NH3)4]+, the oxidation number is III, giving the name tetraamminedichloridochromium (III). This is because the ion overall has a +1 charge, Cl- has a negative 1 charge, and ammonium has a neutral charge.

Re: Oxidation

Posted: Sun Nov 24, 2019 9:03 pm
by Kehlin Hayes 4C
The oxidation number refers to the overall charge the molecule has

Re: Oxidation

Posted: Wed Nov 27, 2019 1:13 pm
by Eva Zhao 4I
To add on, if the problem asks for the oxidation number of the metal, use:
(# of metal ion)*(oxidation number) + (# if each ligand)*(charge of each ligand) = charge of ion

The charge of the ion should be given, allowing you to isolate and solve for the oxidation number of the metal.

Re: Oxidation

Posted: Thu Nov 28, 2019 1:48 am
by EricZhao3G
The oxidation number is the charge the atom would have if the compound was composed of ions. It is the number of electrons gained or loss to form a bond.

Re: Oxidation

Posted: Thu Nov 28, 2019 3:29 pm
by Catherine Daye 1L
An oxidation number is the number of electrons lost or gained when making a chemical bond. If it is a negative number, the atom will gain electrons. If it is a positive number, the atom will lose electrons.

Re: Oxidation

Posted: Thu Nov 28, 2019 4:26 pm
by Rebecca Remple 1C
Kennedi3K wrote:Also can anyone explain what oxidation is? And what Dr. Lavelle meant by oxidation states? I don't remember him explaining the concept in class.

Hi Kennedi,

I agree with the other commenters about oxidation states and numbers. To answer your first questions, an oxidation reaction represents the loss of electrons. It contrasts with a reduction reaction, where electrons are gained. I hope this helps! Have a great day :D

-Rebecca

Re: Oxidation

Posted: Fri Nov 29, 2019 2:24 am
by chrischyu4a
Oxidation numbers indicate the number of electrons gained or lost by an atom in a molecule

Re: Oxidation

Posted: Fri Nov 29, 2019 4:19 pm
by Arianna Perea 3H
is the oxidation number for the molecules always the same?

Re: Oxidation

Posted: Sun Dec 01, 2019 11:33 pm
by PGao_1B
An oxidation number is a number associated with the charge that an atom would have if the compound was composed of ions.

Re: Oxidation

Posted: Sun Dec 01, 2019 11:40 pm
by Abraham De Luna
The oxidation number refers to the charge the molecule has.