PolyatomicIonsToKnow

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19 Terms

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Polyatomic Ion
An ion consisting of two or more atoms that are covalently bonded and that act as a single unit with a net charge.
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Ammonium
NH₄⁺, a polyatomic cation derived from ammonia.
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Carbonate
CO₃²⁻, a polyatomic anion made of one carbon atom and three oxygen atoms.
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Hydrogen Carbonate
HCO₃⁻, also known as bicarbonate; a polyatomic anion.
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Nitrate
NO₃⁻, a polyatomic anion containing one nitrogen and three oxygen atoms.
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Sulfate
SO₄²⁻, a polyatomic anion containing one sulfur atom and four oxygen atoms.
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Hydrogen Sulfate
HSO₄⁻, also known as bisulfate; a polyatomic anion.
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Chlorate
ClO₃⁻, a polyatomic anion.
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Perchlorate
ClO₄⁻, a polyatomic anion.
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Hydroxide
OH⁻, a polyatomic anion.
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Acetate
C₂H₃O₂⁻ or CH₃COO⁻, a polyatomic anion.
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Cyanide
CN⁻, a polyatomic anion.
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Permanganate
MnO₄⁻, a polyatomic anion.
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Phosphate
PO₄³⁻, a polyatomic anion.
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Dichromate
Cr₂O₇²⁻, a polyatomic anion.
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Hydrogen Phosphate
HPO₄²⁻, a polyatomic anion.
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Chromate
CrO₄²⁻, a polyatomic anion.
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Dihydrogen Phosphate
H₂PO₄⁻, a polyatomic anion.
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Peroxide
O₂²⁻, a polyatomic anion.