polyatomic ions

(subscript: ctrl + ,) and (superscript: ctrl + .)

nitrite

NO₂^-

nitrate

NO₃^-

butane

C₄H₁₀

phosphate

PO₄^3-

phosphite

PO₃^3-

sulfate

SO₄^2-

sulfite

SO₃^2-

hydroxide

OH^-

cyanide

CN^-

chromate

CrO₄^2-

dichromate

Cr₂O₇^2-

acetone

(CH₃)₂CO

acetate

C₂H₃O₂^-

hydrogen carbonate (bicarbonate)

HCO₃^-

ammonium

NH₄⁺

bromate

BrO₃^-

iodate

IO₃^-

hydronium

H₃O⁺

carbonate

CO₃^2-

chlorate

ClO₃^-

chlorite

ClO₂^-

dihydrogen phosphate

H₂PO₄^-

perchlorate

ClO₄^-