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Answered 2011-06-13 03:36:35

Two Chromium Atoms, and 3 Oxygen Atoms. (Cr2O3)

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CaO is the empirical formula for calcium oxide.


The empirical formula of calcium oxide is CaO, the same as the formula unit.


Chromium oxide may refer to:Chromium(II) oxide, CrOChromium(III) oxide, Cr2O3Chromium dioxide (chromium(IV) oxide), CrO2Chromium trioxide (chromium(VI) oxide), CrO3


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