Polyatomic Ion Flashcards: 30 Names, Formulas & Charges

Learn 30 commonly taught polyatomic ions with 60 two-way flashcards for name, formula, and charge recall.

À propos de ce paquet

These polyatomic ion flashcards cover 30 commonly taught ions in 60 two-way cards. You’ll practice name → exact conventional formula with charge and formula with charge → canonical or common name. Each direction has its own card, so recognizing a formula does not stand in for recalling it.

Every formula is written as standalone LaTeX with conventional subscripts and a superscript charge. The fixed sequence interleaves both directions and ion families, keeps close variants at least three unrelated cards apart, and leaves longer-term spacing to the review scheduler.

Hydrogen carbonate (bicarbonate) and hydrogen sulfate (bisulfate) are the only paired names. The deck leaves out monatomic ions; borate, phosphite, and silicate, whose classroom species or formula conventions can vary; and compound naming, charge balancing, structures, oxidation states, solubility, colors, applications, reaction prediction, and general naming-rule theory.

ChEBI records were used to verify names, formulas, and charges, with PubChem used as an independent cross-check where its exact ion record was unambiguous. All prompts, answers, selection, order, metadata, and cover composition were created independently. No source or competitor prose, images, screenshots, selection order, trade dress, or logos were copied. Facts are not claimed as proprietary. The original wording, organization, metadata, and cover are dedicated under CC0 1.0 to the extent applicable rights exist.

Cartes de ce paquet

  1. Carte 1

    Question

    What is the formula, including its charge, for chlorite?

    Réponse

    ClO2\mathrm{ClO}_{2}^{-}
  2. Carte 2

    Question

    HSO4\mathrm{HSO}_{4}^{-}

    What is the name of this polyatomic ion?

    Réponse

    Hydrogen sulfate (bisulfate)

  3. Carte 3

    Question

    What is the formula, including its charge, for dihydrogen phosphate?

    Réponse

    H2PO4\mathrm{H}_{2}\mathrm{PO}_{4}^{-}
  4. Carte 4

    Question

    SCN\mathrm{SCN}^{-}

    What is the name of this polyatomic ion?

    Réponse

    Thiocyanate

  5. Carte 5

    Question

    What is the formula, including its charge, for hypochlorite?

    Réponse

    ClO\mathrm{ClO}^{-}
  6. Carte 6

    Question

    S2O32\mathrm{S}_{2}\mathrm{O}_{3}^{2-}

    What is the name of this polyatomic ion?

    Réponse

    Thiosulfate

  7. Carte 7

    Question

    What is the formula, including its charge, for phosphate?

    Réponse

    PO43\mathrm{PO}_{4}^{3-}
  8. Carte 8

    Question

    OCN\mathrm{OCN}^{-}

    What is the name of this polyatomic ion?

    Réponse

    Cyanate

  9. Carte 9

    Question

    What is the formula, including its charge, for perchlorate?

    Réponse

    ClO4\mathrm{ClO}_{4}^{-}
  10. Carte 10

    Question

    SO32\mathrm{SO}_{3}^{2-}

    What is the name of this polyatomic ion?

    Réponse

    Sulfite

  11. Carte 11

    Question

    What is the formula, including its charge, for hydrogen phosphate?

    Réponse

    HPO42\mathrm{HPO}_{4}^{2-}
  12. Carte 12

    Question

    OH\mathrm{OH}^{-}

    What is the name of this polyatomic ion?

    Réponse

    Hydroxide

  13. Carte 13

    Question

    What is the formula, including its charge, for chlorate?

    Réponse

    ClO3\mathrm{ClO}_{3}^{-}
  14. Carte 14

    Question

    SO42\mathrm{SO}_{4}^{2-}

    What is the name of this polyatomic ion?

    Réponse

    Sulfate

  15. Carte 15

    Question

    What is the formula, including its charge, for arsenate?

    Réponse

    AsO43\mathrm{AsO}_{4}^{3-}
  16. Carte 16

    Question

    NO3\mathrm{NO}_{3}^{-}

    What is the name of this polyatomic ion?

    Réponse

    Nitrate

  17. Carte 17

    Question

    What is the formula, including its charge, for bromate?

    Réponse

    BrO3\mathrm{BrO}_{3}^{-}
  18. Carte 18

    Question

    Cr2O72\mathrm{Cr}_{2}\mathrm{O}_{7}^{2-}

    What is the name of this polyatomic ion?

    Réponse

    Dichromate

  19. Carte 19

    Question

    What is the formula, including its charge, for hydrogen carbonate (bicarbonate)?

    Réponse

    HCO3\mathrm{HCO}_{3}^{-}
  20. Carte 20

    Question

    C2H3O2\mathrm{C}_{2}\mathrm{H}_{3}\mathrm{O}_{2}^{-}

    What is the name of this polyatomic ion?

    Réponse

    Acetate

  21. Carte 21

    Question

    What is the formula, including its charge, for iodate?

    Réponse

    IO3\mathrm{IO}_{3}^{-}
  22. Carte 22

    Question

    CN\mathrm{CN}^{-}

    What is the name of this polyatomic ion?

    Réponse

    Cyanide

  23. Carte 23

    Question

    What is the formula, including its charge, for hydronium?

    Réponse

    H3O+\mathrm{H}_{3}\mathrm{O}^{+}
  24. Carte 24

    Question

    O22\mathrm{O}_{2}^{2-}

    What is the name of this polyatomic ion?

    Réponse

    Peroxide

  25. Carte 25

    Question

    What is the formula, including its charge, for chromate?

    Réponse

    CrO42\mathrm{CrO}_{4}^{2-}
  26. Carte 26

    Question

    NO2\mathrm{NO}_{2}^{-}

    What is the name of this polyatomic ion?

    Réponse

    Nitrite

  27. Carte 27

    Question

    What is the formula, including its charge, for ammonium?

    Réponse

    NH4+\mathrm{NH}_{4}^{+}
  28. Carte 28

    Question

    CO32\mathrm{CO}_{3}^{2-}

    What is the name of this polyatomic ion?

    Réponse

    Carbonate

  29. Carte 29

    Question

    What is the formula, including its charge, for oxalate?

    Réponse

    C2O42\mathrm{C}_{2}\mathrm{O}_{4}^{2-}
  30. Carte 30

    Question

    MnO4\mathrm{MnO}_{4}^{-}

    What is the name of this polyatomic ion?

    Réponse

    Permanganate

  31. Carte 31

    Question

    ClO2\mathrm{ClO}_{2}^{-}

    What is the name of this polyatomic ion?

    Réponse

    Chlorite

  32. Carte 32

    Question

    What is the formula, including its charge, for sulfate?

    Réponse

    SO42\mathrm{SO}_{4}^{2-}
  33. Carte 33

    Question

    H2PO4\mathrm{H}_{2}\mathrm{PO}_{4}^{-}

    What is the name of this polyatomic ion?

    Réponse

    Dihydrogen phosphate

  34. Carte 34

    Question

    What is the formula, including its charge, for thiocyanate?

    Réponse

    SCN\mathrm{SCN}^{-}
  35. Carte 35

    Question

    IO3\mathrm{IO}_{3}^{-}

    What is the name of this polyatomic ion?

    Réponse

    Iodate

  36. Carte 36

    Question

    What is the formula, including its charge, for hydrogen sulfate (bisulfate)?

    Réponse

    HSO4\mathrm{HSO}_{4}^{-}
  37. Carte 37

    Question

    PO43\mathrm{PO}_{4}^{3-}

    What is the name of this polyatomic ion?

    Réponse

    Phosphate

  38. Carte 38

    Question

    What is the formula, including its charge, for dichromate?

    Réponse

    Cr2O72\mathrm{Cr}_{2}\mathrm{O}_{7}^{2-}
  39. Carte 39

    Question

    BrO3\mathrm{BrO}_{3}^{-}

    What is the name of this polyatomic ion?

    Réponse

    Bromate

  40. Carte 40

    Question

    What is the formula, including its charge, for peroxide?

    Réponse

    O22\mathrm{O}_{2}^{2-}
  41. Carte 41

    Question

    What is the formula, including its charge, for sulfite?

    Réponse

    SO32\mathrm{SO}_{3}^{2-}
  42. Carte 42

    Question

    What is the formula, including its charge, for nitrite?

    Réponse

    NO2\mathrm{NO}_{2}^{-}
  43. Carte 43

    Question

    ClO\mathrm{ClO}^{-}

    What is the name of this polyatomic ion?

    Réponse

    Hypochlorite

  44. Carte 44

    Question

    HCO3\mathrm{HCO}_{3}^{-}

    What is the name of this polyatomic ion?

    Réponse

    Hydrogen carbonate (bicarbonate)

  45. Carte 45

    Question

    What is the formula, including its charge, for acetate?

    Réponse

    C2H3O2\mathrm{C}_{2}\mathrm{H}_{3}\mathrm{O}_{2}^{-}
  46. Carte 46

    Question

    What is the formula, including its charge, for cyanide?

    Réponse

    CN\mathrm{CN}^{-}
  47. Carte 47

    Question

    ClO4\mathrm{ClO}_{4}^{-}

    What is the name of this polyatomic ion?

    Réponse

    Perchlorate

  48. Carte 48

    Question

    HPO42\mathrm{HPO}_{4}^{2-}

    What is the name of this polyatomic ion?

    Réponse

    Hydrogen phosphate

  49. Carte 49

    Question

    NH4+\mathrm{NH}_{4}^{+}

    What is the name of this polyatomic ion?

    Réponse

    Ammonium

  50. Carte 50

    Question

    CrO42\mathrm{CrO}_{4}^{2-}

    What is the name of this polyatomic ion?

    Réponse

    Chromate

  51. Carte 51

    Question

    What is the formula, including its charge, for permanganate?

    Réponse

    MnO4\mathrm{MnO}_{4}^{-}
  52. Carte 52

    Question

    ClO3\mathrm{ClO}_{3}^{-}

    What is the name of this polyatomic ion?

    Réponse

    Chlorate

  53. Carte 53

    Question

    H3O+\mathrm{H}_{3}\mathrm{O}^{+}

    What is the name of this polyatomic ion?

    Réponse

    Hydronium

  54. Carte 54

    Question

    What is the formula, including its charge, for carbonate?

    Réponse

    CO32\mathrm{CO}_{3}^{2-}
  55. Carte 55

    Question

    What is the formula, including its charge, for nitrate?

    Réponse

    NO3\mathrm{NO}_{3}^{-}
  56. Carte 56

    Question

    What is the formula, including its charge, for hydroxide?

    Réponse

    OH\mathrm{OH}^{-}
  57. Carte 57

    Question

    What is the formula, including its charge, for cyanate?

    Réponse

    OCN\mathrm{OCN}^{-}
  58. Carte 58

    Question

    C2O42\mathrm{C}_{2}\mathrm{O}_{4}^{2-}

    What is the name of this polyatomic ion?

    Réponse

    Oxalate

  59. Carte 59

    Question

    What is the formula, including its charge, for thiosulfate?

    Réponse

    S2O32\mathrm{S}_{2}\mathrm{O}_{3}^{2-}
  60. Carte 60

    Question

    AsO43\mathrm{AsO}_{4}^{3-}

    What is the name of this polyatomic ion?

    Réponse

    Arsenate

Abstract clusters of connected spheres arranged in a balanced chemistry-inspired pattern on a deep blue background.

60 cartes

Polyatomic Ion Flashcards: 30 Names, Formulas & Charges

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