ammonium correct answers NH₄⁺
acetate correct answers C₂H₃O₂⁻
carbonate correct answers CO₃²⁻
hydrogen carbonate (bicarbonate) correct answers HCO₃⁻
dichromate correct answers Cr₂O₇²⁻
chromate correct answers CrO₄²⁻
perchlorate correct answers ClO₄⁻
chlorate correct answers ClO₃⁻
chlorite correct answers ClO₂⁻
hypochlorite correct answers ClO⁻
cyanide correct answers CN⁻
hydroxide correct answers OH⁻
nitrate correct answers NO₃⁻
nitrite correct answers NO₂⁻
permanganate correct answers MnO₄⁻
peroxide correct answers O₂²⁻
dihydrogen phosphate correct answers H₂PO₄⁻
phosphate correct answers PO₄³⁻
hydrogen sulfate (bisulfate) correct answers HSO₄⁻
sulfate correct answers SO₄²⁻
sulfite correct answers SO₃²⁻
hydronium correct answers H₃O⁺
periodate correct answers IO₄⁻
hydrogen phosphate correct answers HPO₄²⁻