please help me within five minutes?

Chemistry
Tutor: None Selected Time limit: 1 Day

Indicate which of the following statements is correct.


 CoO is cobalt(II) oxide 
 KO is potassium oxide 
 Ag2O is silver(II) oxide 
 ZnO is zinc oxide 

 Cr2O3 is chromium(III) oxide 

Nov 2nd, 2014

True

False

True

True

True


Nov 2nd, 2014

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Nov 2nd, 2014
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Nov 2nd, 2014
Dec 4th, 2016
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