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Polyatomic Ion Flashcards: 30 Names, Formulas & Charges

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

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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.

Карточки в этой колоде

  1. Карточка 1

    Вопрос

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

    Ответ

    ClO2−\mathrm{ClO}_{2}^{-}

  2. Карточка 2

    Вопрос

    HSO4−\mathrm{HSO}_{4}^{-}

    What is the name of this polyatomic ion?

    Ответ

    Hydrogen sulfate (bisulfate)

  3. Карточка 3

    Вопрос

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

    Ответ

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

  4. Карточка 4

    Вопрос

    SCN−\mathrm{SCN}^{-}

    What is the name of this polyatomic ion?

    Ответ

    Thiocyanate

  5. Карточка 5

    Вопрос

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

    Ответ

    ClO−\mathrm{ClO}^{-}

  6. Карточка 6

    Вопрос

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

    What is the name of this polyatomic ion?

    Ответ

    Thiosulfate

  7. Карточка 7

    Вопрос

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

    Ответ

    PO43−\mathrm{PO}_{4}^{3-}

  8. Карточка 8

    Вопрос

    OCN−\mathrm{OCN}^{-}

    What is the name of this polyatomic ion?

    Ответ

    Cyanate

  9. Карточка 9

    Вопрос

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

    Ответ

    ClO4−\mathrm{ClO}_{4}^{-}

  10. Карточка 10

    Вопрос

    SO32−\mathrm{SO}_{3}^{2-}

    What is the name of this polyatomic ion?

    Ответ

    Sulfite

  11. Карточка 11

    Вопрос

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

    Ответ

    HPO42−\mathrm{HPO}_{4}^{2-}

  12. Карточка 12

    Вопрос

    OH−\mathrm{OH}^{-}

    What is the name of this polyatomic ion?

    Ответ

    Hydroxide

  13. Карточка 13

    Вопрос

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

    Ответ

    ClO3−\mathrm{ClO}_{3}^{-}

  14. Карточка 14

    Вопрос

    SO42−\mathrm{SO}_{4}^{2-}

    What is the name of this polyatomic ion?

    Ответ

    Sulfate

  15. Карточка 15

    Вопрос

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

    Ответ

    AsO43−\mathrm{AsO}_{4}^{3-}

  16. Карточка 16

    Вопрос

    NO3−\mathrm{NO}_{3}^{-}

    What is the name of this polyatomic ion?

    Ответ

    Nitrate

  17. Карточка 17

    Вопрос

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

    Ответ

    BrO3−\mathrm{BrO}_{3}^{-}

  18. Карточка 18

    Вопрос

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

    What is the name of this polyatomic ion?

    Ответ

    Dichromate

  19. Карточка 19

    Вопрос

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

    Ответ

    HCO3−\mathrm{HCO}_{3}^{-}

  20. Карточка 20

    Вопрос

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

    What is the name of this polyatomic ion?

    Ответ

    Acetate

  21. Карточка 21

    Вопрос

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

    Ответ

    IO3−\mathrm{IO}_{3}^{-}

  22. Карточка 22

    Вопрос

    CN−\mathrm{CN}^{-}

    What is the name of this polyatomic ion?

    Ответ

    Cyanide

  23. Карточка 23

    Вопрос

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

    Ответ

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

  24. Карточка 24

    Вопрос

    O22−\mathrm{O}_{2}^{2-}

    What is the name of this polyatomic ion?

    Ответ

    Peroxide

  25. Карточка 25

    Вопрос

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

    Ответ

    CrO42−\mathrm{CrO}_{4}^{2-}

  26. Карточка 26

    Вопрос

    NO2−\mathrm{NO}_{2}^{-}

    What is the name of this polyatomic ion?

    Ответ

    Nitrite

  27. Карточка 27

    Вопрос

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

    Ответ

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

  28. Карточка 28

    Вопрос

    CO32−\mathrm{CO}_{3}^{2-}

    What is the name of this polyatomic ion?

    Ответ

    Carbonate

  29. Карточка 29

    Вопрос

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

    Ответ

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

  30. Карточка 30

    Вопрос

    MnO4−\mathrm{MnO}_{4}^{-}

    What is the name of this polyatomic ion?

    Ответ

    Permanganate

  31. Карточка 31

    Вопрос

    ClO2−\mathrm{ClO}_{2}^{-}

    What is the name of this polyatomic ion?

    Ответ

    Chlorite

  32. Карточка 32

    Вопрос

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

    Ответ

    SO42−\mathrm{SO}_{4}^{2-}

  33. Карточка 33

    Вопрос

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

    What is the name of this polyatomic ion?

    Ответ

    Dihydrogen phosphate

  34. Карточка 34

    Вопрос

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

    Ответ

    SCN−\mathrm{SCN}^{-}

  35. Карточка 35

    Вопрос

    IO3−\mathrm{IO}_{3}^{-}

    What is the name of this polyatomic ion?

    Ответ

    Iodate

  36. Карточка 36

    Вопрос

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

    Ответ

    HSO4−\mathrm{HSO}_{4}^{-}

  37. Карточка 37

    Вопрос

    PO43−\mathrm{PO}_{4}^{3-}

    What is the name of this polyatomic ion?

    Ответ

    Phosphate

  38. Карточка 38

    Вопрос

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

    Ответ

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

  39. Карточка 39

    Вопрос

    BrO3−\mathrm{BrO}_{3}^{-}

    What is the name of this polyatomic ion?

    Ответ

    Bromate

  40. Карточка 40

    Вопрос

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

    Ответ

    O22−\mathrm{O}_{2}^{2-}

  41. Карточка 41

    Вопрос

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

    Ответ

    SO32−\mathrm{SO}_{3}^{2-}

  42. Карточка 42

    Вопрос

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

    Ответ

    NO2−\mathrm{NO}_{2}^{-}

  43. Карточка 43

    Вопрос

    ClO−\mathrm{ClO}^{-}

    What is the name of this polyatomic ion?

    Ответ

    Hypochlorite

  44. Карточка 44

    Вопрос

    HCO3−\mathrm{HCO}_{3}^{-}

    What is the name of this polyatomic ion?

    Ответ

    Hydrogen carbonate (bicarbonate)

  45. Карточка 45

    Вопрос

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

    Ответ

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

  46. Карточка 46

    Вопрос

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

    Ответ

    CN−\mathrm{CN}^{-}

  47. Карточка 47

    Вопрос

    ClO4−\mathrm{ClO}_{4}^{-}

    What is the name of this polyatomic ion?

    Ответ

    Perchlorate

  48. Карточка 48

    Вопрос

    HPO42−\mathrm{HPO}_{4}^{2-}

    What is the name of this polyatomic ion?

    Ответ

    Hydrogen phosphate

  49. Карточка 49

    Вопрос

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

    What is the name of this polyatomic ion?

    Ответ

    Ammonium

  50. Карточка 50

    Вопрос

    CrO42−\mathrm{CrO}_{4}^{2-}

    What is the name of this polyatomic ion?

    Ответ

    Chromate

  51. Карточка 51

    Вопрос

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

    Ответ

    MnO4−\mathrm{MnO}_{4}^{-}

  52. Карточка 52

    Вопрос

    ClO3−\mathrm{ClO}_{3}^{-}

    What is the name of this polyatomic ion?

    Ответ

    Chlorate

  53. Карточка 53

    Вопрос

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

    What is the name of this polyatomic ion?

    Ответ

    Hydronium

  54. Карточка 54

    Вопрос

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

    Ответ

    CO32−\mathrm{CO}_{3}^{2-}

  55. Карточка 55

    Вопрос

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

    Ответ

    NO3−\mathrm{NO}_{3}^{-}

  56. Карточка 56

    Вопрос

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

    Ответ

    OH−\mathrm{OH}^{-}

  57. Карточка 57

    Вопрос

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

    Ответ

    OCN−\mathrm{OCN}^{-}

  58. Карточка 58

    Вопрос

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

    What is the name of this polyatomic ion?

    Ответ

    Oxalate

  59. Карточка 59

    Вопрос

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

    Ответ

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

  60. Карточка 60

    Вопрос

    AsO43−\mathrm{AsO}_{4}^{3-}

    What is the name of this polyatomic ion?

    Ответ

    Arsenate

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

60 карточек

Polyatomic Ion Flashcards: 30 Names, Formulas & Charges

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