A chemical compound containing two oxygen atoms or derived from the combination of two oxides.
From bi- 'two' + oxide (from ox- relating to oxygen + -ide, chemical suffix). The prefix indicates the molecule contains two oxide units or oxidation reactions.
Binoxide chemistry led to some of the most important discoveries in inorganic chemistry—compounds like nitrogen dioxide (NO₂) show how adding just one more oxygen atom can completely change a substance's properties and dangers.
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