H₃O⁺ - hydronium, Hg₂²⁺ - mercury (I), NH₄⁺ - ammonium, C₂H₃O₂⁻ - acetate (version 1), CH₃COO⁻ - acetate (version 2), CN⁻ - cyanide, CO₃²⁻ - carbonate, C₂O₄²⁻ - oxalate, ClO⁻ - hypochlorite, ClO₂⁻ - chlorite, ClO₃⁻ - chlorate, ClO₄⁻ - perchlorate, CrO₄²⁻ - chromate, Cr₂O₇²⁻ - dichromate, MnO₄⁻ - permanganate, NO₂⁻ - nitrite, NO₃⁻ - nitrate, O₂²⁻ - peroxide, OH⁻ - hydroxide, PO₄³⁻ - phosphate, SCN⁻ - thiocyanate, SO₃²⁻ - sulfite, SO₄²⁻ - sulfate, HSO₄⁻ - hydrogen sulfate, S₂O₃²⁻ - thiosulfate,

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