Polyatomic Ions

	(hydrogen carbonate)
NO3^-	HCO3^-	SO4^-2	PO4^-3
ammonium	hydroxide
NH4^+	OH^-	ClO3^-	CO3^-2
NO3^-	HCO3^- (hydrogen carbonate)	SO4^-2	PO4^-3
N3^-	ClO^-	NO2^-	SO2^-2