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en.wikipedia.org/wiki/Oxidation_state

The oxidation state, often called the oxidation number, is an indicator of the degree of oxidation .... Oxygen is assumed to have its usual oxidation state of −2, and so the sum of the oxidation states of all the atoms can be expressed as x + 2( −2) ...

www.chemguide.co.uk/inorganic/redox/oxidnstates.html

The less electronegative one is given a positive oxidation state. Remember that fluorine is the most electronegative element with oxygen second.

www.khanacademy.org/science/chemistry/chemical-reactions-stoichiome/types-of-chemical-reactions/a/oxidation-number

Let's make sense of oxidation numbers with a few examples! ... assigned a oxidation number; oxygen is usually assigned a oxidation number (except in peroxide ...

chemed.chem.purdue.edu/genchem/topicreview/bp/ch2/oxnumb.html

The oxidation number of simple ions is equal to the charge on the ion. The oxidation ... Oxygen usually has an oxidation number of -2. Exceptions include ...

www.science.uwaterloo.ca/~cchieh/cact/c123/oxidstat.html

The oxidation state of oxygen in its compounds is -2, except for peroxides like ... - 1 for halogens except when they form compounds with oxygen or one another;.

www.quora.com/What-is-the-oxidation-number-of-oxygen-in-hydrogen-peroxide-H2O2

Let me first tell you oxidation number .O.N.is the formal charge that an atom appears to have when the electrons are counted as per certain arbitrary ...

www.quora.com/What-is-the-oxidation-state-of-OH

Assuming you are asking about OH- Hydroxide OH- has a charge of -1. The Oxygen has an oxidation number -2 and hydrogen has the ...

www.dummies.com/education/science/chemistry/rules-for-assigning-oxidation-numbers-to-elements

Rule 5: The oxidation number of oxygen in a compound is usually –2. If, however, the oxygen is in a class of compounds called peroxides (for example, ...

www.wikihow.com/Find-Oxidation-Numbers

Assign an oxidation number of -2 to oxygen (with exceptions). In almost all cases, oxygen atoms have oxidation numbers of -2. There are a few exceptions to this ...

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