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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.

Tämän pakan kortit

  1. Kortti 1

    Kysymys

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

    Vastaus

    ClO2−\mathrm{ClO}_{2}^{-}

  2. Kortti 2

    Kysymys

    HSO4−\mathrm{HSO}_{4}^{-}

    What is the name of this polyatomic ion?

    Vastaus

    Hydrogen sulfate (bisulfate)

  3. Kortti 3

    Kysymys

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

    Vastaus

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

  4. Kortti 4

    Kysymys

    SCN−\mathrm{SCN}^{-}

    What is the name of this polyatomic ion?

    Vastaus

    Thiocyanate

  5. Kortti 5

    Kysymys

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

    Vastaus

    ClO−\mathrm{ClO}^{-}

  6. Kortti 6

    Kysymys

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

    What is the name of this polyatomic ion?

    Vastaus

    Thiosulfate

  7. Kortti 7

    Kysymys

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

    Vastaus

    PO43−\mathrm{PO}_{4}^{3-}

  8. Kortti 8

    Kysymys

    OCN−\mathrm{OCN}^{-}

    What is the name of this polyatomic ion?

    Vastaus

    Cyanate

  9. Kortti 9

    Kysymys

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

    Vastaus

    ClO4−\mathrm{ClO}_{4}^{-}

  10. Kortti 10

    Kysymys

    SO32−\mathrm{SO}_{3}^{2-}

    What is the name of this polyatomic ion?

    Vastaus

    Sulfite

  11. Kortti 11

    Kysymys

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

    Vastaus

    HPO42−\mathrm{HPO}_{4}^{2-}

  12. Kortti 12

    Kysymys

    OH−\mathrm{OH}^{-}

    What is the name of this polyatomic ion?

    Vastaus

    Hydroxide

  13. Kortti 13

    Kysymys

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

    Vastaus

    ClO3−\mathrm{ClO}_{3}^{-}

  14. Kortti 14

    Kysymys

    SO42−\mathrm{SO}_{4}^{2-}

    What is the name of this polyatomic ion?

    Vastaus

    Sulfate

  15. Kortti 15

    Kysymys

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

    Vastaus

    AsO43−\mathrm{AsO}_{4}^{3-}

  16. Kortti 16

    Kysymys

    NO3−\mathrm{NO}_{3}^{-}

    What is the name of this polyatomic ion?

    Vastaus

    Nitrate

  17. Kortti 17

    Kysymys

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

    Vastaus

    BrO3−\mathrm{BrO}_{3}^{-}

  18. Kortti 18

    Kysymys

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

    What is the name of this polyatomic ion?

    Vastaus

    Dichromate

  19. Kortti 19

    Kysymys

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

    Vastaus

    HCO3−\mathrm{HCO}_{3}^{-}

  20. Kortti 20

    Kysymys

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

    What is the name of this polyatomic ion?

    Vastaus

    Acetate

  21. Kortti 21

    Kysymys

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

    Vastaus

    IO3−\mathrm{IO}_{3}^{-}

  22. Kortti 22

    Kysymys

    CN−\mathrm{CN}^{-}

    What is the name of this polyatomic ion?

    Vastaus

    Cyanide

  23. Kortti 23

    Kysymys

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

    Vastaus

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

  24. Kortti 24

    Kysymys

    O22−\mathrm{O}_{2}^{2-}

    What is the name of this polyatomic ion?

    Vastaus

    Peroxide

  25. Kortti 25

    Kysymys

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

    Vastaus

    CrO42−\mathrm{CrO}_{4}^{2-}

  26. Kortti 26

    Kysymys

    NO2−\mathrm{NO}_{2}^{-}

    What is the name of this polyatomic ion?

    Vastaus

    Nitrite

  27. Kortti 27

    Kysymys

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

    Vastaus

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

  28. Kortti 28

    Kysymys

    CO32−\mathrm{CO}_{3}^{2-}

    What is the name of this polyatomic ion?

    Vastaus

    Carbonate

  29. Kortti 29

    Kysymys

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

    Vastaus

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

  30. Kortti 30

    Kysymys

    MnO4−\mathrm{MnO}_{4}^{-}

    What is the name of this polyatomic ion?

    Vastaus

    Permanganate

  31. Kortti 31

    Kysymys

    ClO2−\mathrm{ClO}_{2}^{-}

    What is the name of this polyatomic ion?

    Vastaus

    Chlorite

  32. Kortti 32

    Kysymys

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

    Vastaus

    SO42−\mathrm{SO}_{4}^{2-}

  33. Kortti 33

    Kysymys

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

    What is the name of this polyatomic ion?

    Vastaus

    Dihydrogen phosphate

  34. Kortti 34

    Kysymys

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

    Vastaus

    SCN−\mathrm{SCN}^{-}

  35. Kortti 35

    Kysymys

    IO3−\mathrm{IO}_{3}^{-}

    What is the name of this polyatomic ion?

    Vastaus

    Iodate

  36. Kortti 36

    Kysymys

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

    Vastaus

    HSO4−\mathrm{HSO}_{4}^{-}

  37. Kortti 37

    Kysymys

    PO43−\mathrm{PO}_{4}^{3-}

    What is the name of this polyatomic ion?

    Vastaus

    Phosphate

  38. Kortti 38

    Kysymys

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

    Vastaus

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

  39. Kortti 39

    Kysymys

    BrO3−\mathrm{BrO}_{3}^{-}

    What is the name of this polyatomic ion?

    Vastaus

    Bromate

  40. Kortti 40

    Kysymys

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

    Vastaus

    O22−\mathrm{O}_{2}^{2-}

  41. Kortti 41

    Kysymys

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

    Vastaus

    SO32−\mathrm{SO}_{3}^{2-}

  42. Kortti 42

    Kysymys

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

    Vastaus

    NO2−\mathrm{NO}_{2}^{-}

  43. Kortti 43

    Kysymys

    ClO−\mathrm{ClO}^{-}

    What is the name of this polyatomic ion?

    Vastaus

    Hypochlorite

  44. Kortti 44

    Kysymys

    HCO3−\mathrm{HCO}_{3}^{-}

    What is the name of this polyatomic ion?

    Vastaus

    Hydrogen carbonate (bicarbonate)

  45. Kortti 45

    Kysymys

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

    Vastaus

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

  46. Kortti 46

    Kysymys

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

    Vastaus

    CN−\mathrm{CN}^{-}

  47. Kortti 47

    Kysymys

    ClO4−\mathrm{ClO}_{4}^{-}

    What is the name of this polyatomic ion?

    Vastaus

    Perchlorate

  48. Kortti 48

    Kysymys

    HPO42−\mathrm{HPO}_{4}^{2-}

    What is the name of this polyatomic ion?

    Vastaus

    Hydrogen phosphate

  49. Kortti 49

    Kysymys

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

    What is the name of this polyatomic ion?

    Vastaus

    Ammonium

  50. Kortti 50

    Kysymys

    CrO42−\mathrm{CrO}_{4}^{2-}

    What is the name of this polyatomic ion?

    Vastaus

    Chromate

  51. Kortti 51

    Kysymys

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

    Vastaus

    MnO4−\mathrm{MnO}_{4}^{-}

  52. Kortti 52

    Kysymys

    ClO3−\mathrm{ClO}_{3}^{-}

    What is the name of this polyatomic ion?

    Vastaus

    Chlorate

  53. Kortti 53

    Kysymys

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

    What is the name of this polyatomic ion?

    Vastaus

    Hydronium

  54. Kortti 54

    Kysymys

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

    Vastaus

    CO32−\mathrm{CO}_{3}^{2-}

  55. Kortti 55

    Kysymys

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

    Vastaus

    NO3−\mathrm{NO}_{3}^{-}

  56. Kortti 56

    Kysymys

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

    Vastaus

    OH−\mathrm{OH}^{-}

  57. Kortti 57

    Kysymys

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

    Vastaus

    OCN−\mathrm{OCN}^{-}

  58. Kortti 58

    Kysymys

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

    What is the name of this polyatomic ion?

    Vastaus

    Oxalate

  59. Kortti 59

    Kysymys

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

    Vastaus

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

  60. Kortti 60

    Kysymys

    AsO43−\mathrm{AsO}_{4}^{3-}

    What is the name of this polyatomic ion?

    Vastaus

    Arsenate

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

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Polyatomic Ion Flashcards: 30 Names, Formulas & Charges

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