Oxygen compounds

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  • Oxygen Compounds
definition
  • Oxygen (O) (and molecular oxygen (O2)) is the second most abundant species in the atmosphere. The abundance of O2 remains fairly constant in the atmosphere up to about 80km where it photodissociates to atomic oxygen. Atomic oxygen is formed from the photolysis of molecular oxygen (O2), ozone (O3), or nitrogen dioxide (NO2) in the atmosphere. Below about 40 km, atomic oxygen recombines with O2 to form ozone. Above 40 km, oxygen can participate in other chemical reactions that cause the destruction of ozone.
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Abstract from DBPedia
    The oxidation state of oxygen is −2 in almost all known compounds of oxygen. The oxidation state −1 is found in a few compounds such as peroxides. Compounds containing oxygen in other oxidation states are very uncommon: −1⁄2 (superoxides), −1⁄3 (ozonides), 0 (elemental, hypofluorous acid), +1⁄2 (dioxygenyl), +1 (dioxygen difluoride), and +2 (oxygen difluoride). Oxygen is reactive and will form oxides with all other elements except the noble gases helium, neon, argon and krypton.

    (Source: http://dbpedia.org/resource/Oxygen_compounds)

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