This bingo card has 25 words: Free!, PO₄³⁻, C₂H₃O₂⁻, CN⁻, CO₃²⁻, NO₂⁻, NO₃⁻, MnO₄⁻, SO₃²⁻, SO₄²⁻, CrO₄²⁻, Cr₂O₇²⁻, ClO₄⁻, O₂²⁻, NH₄⁺, ClO₃⁻, PO₃³⁻, OH⁻, ClO⁻, ClO₂⁻, H₂PO₄⁻, HPO₄²⁻, HSO₄⁻, HCO₃⁻ and AsO₄³⁻.
Polyatomic Ions | Polyatomic Ions | Polyatomic Ions | Polyatomic Ions | Polyatomic Ions
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With players vying for a you'll have to call about __ items before someone wins. There's a __% chance that a lucky player would win after calling __ items.
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