Oxidation Numbers 7

Here are some common anions.

HCO₃^-	bicarbonate
CO₃^2-	carbonate
CrO₄^2-	chromate
NO₃^-	nitrate
NO₂^-	nitrite
ClO₄^-	perchlorate
MnO₄^-	permanganate
PO₄^3-	phosphate
SO₄^2-	sulfate
SO₃^2-	sulfite

The names of these anions are related to the names of the corresonding acids.

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