Can oxygen be found in both ionic and covalent compounds.?

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Can oxygen be found in both ionic and covalent compounds.?

And which of the following substances does not contain any covalent bonds?
Mg(PO4)2 (Magnesium phosphate)
NaHCO3 (baking soda)
NaBr (Sodium bromide)
NaNO3 (sodium nitrate)

2007-05-06 16:06:34 · 2 answers · asked by Heavy Metal 3 in Science & Mathematics ➔ Chemistry

2 answers

Oxygen can be ionic, ex. is CaO
Oxygen can be covalent, ex. is H2O

NaBr is purely ionic

2007-05-06 16:11:45 · answer #1 · answered by reb1240 7 · 0⤊ 0⤋

sodium nitrate is an ionic bond all the others are covalent

2007-05-06 16:17:52 · answer #2 · answered by Anonymous · 0⤊ 0⤋