Difference between revisions of "Oxygen"
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| − | Oxygen is a chemical [[element]] vital for life. Under normal conditions it is a colorless odorless [[gas]] consisting of two oxygen [[atom|atoms]] which has the chemical formula O<sub>2</sub>. | + | Oxygen is a chemical [[element]] vital for life. Under normal conditions it is a colorless odorless [[gas]] consisting of two oxygen [[atom|atoms]] which has the chemical formula O<sub>2</sub>. This means it is diatomic. |
Approximately 20% of the [[atmosphere]] is made up of oxygen. | Approximately 20% of the [[atmosphere]] is made up of oxygen. | ||
Revision as of 21:13, April 12, 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. This means it is diatomic.
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.
