Difference between revisions of "Oxygen"
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Approximately 20% of the [[atmosphere]] is made up of oxygen. | Approximately 20% of the [[atmosphere]] is made up of oxygen. | ||
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| + | Oxygen in a concentrated form is explosive]]. It is the component of all [[combustion]] reactions and produces [[carbon dioxide]]. | ||
[[Category:Chemistry]] | [[Category:Chemistry]] | ||
[[Category:Elements]] | [[Category:Elements]] | ||
| − | [[Category: hydrogen economy] | + | [[Category: hydrogen economy]] |
[[Category:gasses]] | [[Category:gasses]] | ||
Revision as of 19:40, April 6, 2007
Oxygen is a chemical element vital for life. Under normal conditions it is a colorless odorless gas consisting of two oxygen atoms which has the chemical formula O2.
Approximately 20% of the atmosphere is made up of oxygen.
Oxygen in a concentrated form is explosive]]. It is the component of all combustion reactions and produces carbon dioxide.