22 Essential Polyatomic Ions

Question	Answer
nitrate	\[NO_3 ^{\hspace1ex -}\]
nitrite	\[NO_2 ^{\hspace1ex -}\]
perchlorate	\[ClO_4 ^{\hspace1ex -}\]
chlorate	\[ClO_3 ^{\hspace1ex -}\]
chlorite	\[ClO_2 ^{\hspace1ex -}\]
hypochlorite	\[ClO ^{-}\]
acetate	\[C_2H_3O_2 ^{\hspace1ex -}\] ...or \[CH_3COO ^{-}\]
permanganate	\[MnO_4 ^{\hspace1ex -}\]
cyanide	\[CN^{-}\]
hydroxide	\[OH^{-}\]
peroxide	\[O_2 ^{\hspace1ex 2-}\]
carbonate	\[CO_3 ^{\hspace1ex 2-}\]
bicarbonate (...or hydrogen carbonate)	\[HCO_3 ^{\hspace1ex -}\]
sulfate	\[SO_4 ^{\hspace1ex 2-}\]
sulfite	\[SO_3 ^{\hspace1ex 2-}\]
chromate	\[CrO_4 ^{\hspace1ex 2-}\]
dichromate	\[Cr_2O_7 ^{\hspace1ex 2-}\]
oxalate	\[C_2O_4 ^{\hspace1ex 2-}\]
thiosulfate	\[S_2O_3 ^{\hspace1ex 2-}\]
phosphate	\[PO_4 ^{\hspace1ex 3-}\]
ammonium ion	\[NH_4 ^{\hspace1ex +}\]
thiocyanate	\[SCN^{-}\]

Resource summary

	Created by Stephen Orr about 4 years ago