## Oxidation

Philip
Posts: 100
Joined: Sat Sep 07, 2019 12:16 am

### Oxidation

What's an oxidation number

Kennedi2J
Posts: 101
Joined: Wed Sep 18, 2019 12:20 am

### Re: Oxidation

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.

Posts: 40
Joined: Fri Aug 30, 2019 12:18 am

### Re: Oxidation

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).

Nare Nazaryan 1F
Posts: 101
Joined: Fri Aug 09, 2019 12:17 am

### Re: Oxidation

The oxidation number/state is the charge that cation/anion has. For example, chlorine's oxidation state would be -1 (chloride).

Posts: 103
Joined: Sat Aug 17, 2019 12:18 am

### Re: Oxidation

An oxidation number represents the number of electrons lost or gained by an electron in a redox reaction.

Sydney Jacobs 1C
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Joined: Thu Jul 25, 2019 12:15 am
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### Re: Oxidation

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.

Kehlin Hayes 4C
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Joined: Wed Sep 18, 2019 12:17 am

### Re: Oxidation

The oxidation number refers to the overall charge the molecule has

Eva Zhao 4I
Posts: 101
Joined: Sun Sep 29, 2019 12:16 am

### Re: Oxidation

To add on, if the problem asks for the oxidation number of the metal, use:
(# of metal ion)*(oxidation number) + $\sum$(# 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.

EricZhao3G
Posts: 51
Joined: Tue Oct 08, 2019 12:16 am

### Re: Oxidation

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.

Catherine Daye 1L
Posts: 104
Joined: Wed Sep 11, 2019 12:16 am

### Re: Oxidation

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.

Rebecca Remple 1C
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Joined: Wed Sep 18, 2019 12:16 am
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### Re: Oxidation

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

chrischyu4a
Posts: 52
Joined: Thu Jul 25, 2019 12:16 am

### Re: Oxidation

Oxidation numbers indicate the number of electrons gained or lost by an atom in a molecule

Arianna Perea 3H
Posts: 50
Joined: Thu Jul 25, 2019 12:17 am

### Re: Oxidation

is the oxidation number for the molecules always the same?

PGao_1B
Posts: 50
Joined: Sat Jul 20, 2019 12:15 am

### Re: Oxidation

An oxidation number is a number associated with the charge that an atom would have if the compound was composed of ions.

Abraham De Luna
Posts: 31
Joined: Sat Sep 14, 2019 12:16 am

### Re: Oxidation

The oxidation number refers to the charge the molecule has.