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What chemical formulas represents oxygen gas??
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What chemical formulas represents oxygen gas??

User Jcmvbkbc
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3 votes
Oxygen's Formula is O2.
We breathe in O2 and Breathe out CO2


User Mattias Ottosson
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4 votes
it is O with a little 2 subscript. it represents two atoms of oxygen.
User IntStarFoo
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