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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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Sobre aquesta baralla

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.

Targetes d'aquesta baralla

  1. Targeta 1

    Pregunta

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

    Resposta

    ClO2−\mathrm{ClO}_{2}^{-}

  2. Targeta 2

    Pregunta

    HSO4−\mathrm{HSO}_{4}^{-}

    What is the name of this polyatomic ion?

    Resposta

    Hydrogen sulfate (bisulfate)

  3. Targeta 3

    Pregunta

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

    Resposta

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

  4. Targeta 4

    Pregunta

    SCN−\mathrm{SCN}^{-}

    What is the name of this polyatomic ion?

    Resposta

    Thiocyanate

  5. Targeta 5

    Pregunta

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

    Resposta

    ClO−\mathrm{ClO}^{-}

  6. Targeta 6

    Pregunta

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

    What is the name of this polyatomic ion?

    Resposta

    Thiosulfate

  7. Targeta 7

    Pregunta

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

    Resposta

    PO43−\mathrm{PO}_{4}^{3-}

  8. Targeta 8

    Pregunta

    OCN−\mathrm{OCN}^{-}

    What is the name of this polyatomic ion?

    Resposta

    Cyanate

  9. Targeta 9

    Pregunta

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

    Resposta

    ClO4−\mathrm{ClO}_{4}^{-}

  10. Targeta 10

    Pregunta

    SO32−\mathrm{SO}_{3}^{2-}

    What is the name of this polyatomic ion?

    Resposta

    Sulfite

  11. Targeta 11

    Pregunta

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

    Resposta

    HPO42−\mathrm{HPO}_{4}^{2-}

  12. Targeta 12

    Pregunta

    OH−\mathrm{OH}^{-}

    What is the name of this polyatomic ion?

    Resposta

    Hydroxide

  13. Targeta 13

    Pregunta

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

    Resposta

    ClO3−\mathrm{ClO}_{3}^{-}

  14. Targeta 14

    Pregunta

    SO42−\mathrm{SO}_{4}^{2-}

    What is the name of this polyatomic ion?

    Resposta

    Sulfate

  15. Targeta 15

    Pregunta

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

    Resposta

    AsO43−\mathrm{AsO}_{4}^{3-}

  16. Targeta 16

    Pregunta

    NO3−\mathrm{NO}_{3}^{-}

    What is the name of this polyatomic ion?

    Resposta

    Nitrate

  17. Targeta 17

    Pregunta

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

    Resposta

    BrO3−\mathrm{BrO}_{3}^{-}

  18. Targeta 18

    Pregunta

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

    What is the name of this polyatomic ion?

    Resposta

    Dichromate

  19. Targeta 19

    Pregunta

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

    Resposta

    HCO3−\mathrm{HCO}_{3}^{-}

  20. Targeta 20

    Pregunta

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

    What is the name of this polyatomic ion?

    Resposta

    Acetate

  21. Targeta 21

    Pregunta

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

    Resposta

    IO3−\mathrm{IO}_{3}^{-}

  22. Targeta 22

    Pregunta

    CN−\mathrm{CN}^{-}

    What is the name of this polyatomic ion?

    Resposta

    Cyanide

  23. Targeta 23

    Pregunta

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

    Resposta

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

  24. Targeta 24

    Pregunta

    O22−\mathrm{O}_{2}^{2-}

    What is the name of this polyatomic ion?

    Resposta

    Peroxide

  25. Targeta 25

    Pregunta

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

    Resposta

    CrO42−\mathrm{CrO}_{4}^{2-}

  26. Targeta 26

    Pregunta

    NO2−\mathrm{NO}_{2}^{-}

    What is the name of this polyatomic ion?

    Resposta

    Nitrite

  27. Targeta 27

    Pregunta

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

    Resposta

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

  28. Targeta 28

    Pregunta

    CO32−\mathrm{CO}_{3}^{2-}

    What is the name of this polyatomic ion?

    Resposta

    Carbonate

  29. Targeta 29

    Pregunta

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

    Resposta

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

  30. Targeta 30

    Pregunta

    MnO4−\mathrm{MnO}_{4}^{-}

    What is the name of this polyatomic ion?

    Resposta

    Permanganate

  31. Targeta 31

    Pregunta

    ClO2−\mathrm{ClO}_{2}^{-}

    What is the name of this polyatomic ion?

    Resposta

    Chlorite

  32. Targeta 32

    Pregunta

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

    Resposta

    SO42−\mathrm{SO}_{4}^{2-}

  33. Targeta 33

    Pregunta

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

    What is the name of this polyatomic ion?

    Resposta

    Dihydrogen phosphate

  34. Targeta 34

    Pregunta

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

    Resposta

    SCN−\mathrm{SCN}^{-}

  35. Targeta 35

    Pregunta

    IO3−\mathrm{IO}_{3}^{-}

    What is the name of this polyatomic ion?

    Resposta

    Iodate

  36. Targeta 36

    Pregunta

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

    Resposta

    HSO4−\mathrm{HSO}_{4}^{-}

  37. Targeta 37

    Pregunta

    PO43−\mathrm{PO}_{4}^{3-}

    What is the name of this polyatomic ion?

    Resposta

    Phosphate

  38. Targeta 38

    Pregunta

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

    Resposta

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

  39. Targeta 39

    Pregunta

    BrO3−\mathrm{BrO}_{3}^{-}

    What is the name of this polyatomic ion?

    Resposta

    Bromate

  40. Targeta 40

    Pregunta

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

    Resposta

    O22−\mathrm{O}_{2}^{2-}

  41. Targeta 41

    Pregunta

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

    Resposta

    SO32−\mathrm{SO}_{3}^{2-}

  42. Targeta 42

    Pregunta

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

    Resposta

    NO2−\mathrm{NO}_{2}^{-}

  43. Targeta 43

    Pregunta

    ClO−\mathrm{ClO}^{-}

    What is the name of this polyatomic ion?

    Resposta

    Hypochlorite

  44. Targeta 44

    Pregunta

    HCO3−\mathrm{HCO}_{3}^{-}

    What is the name of this polyatomic ion?

    Resposta

    Hydrogen carbonate (bicarbonate)

  45. Targeta 45

    Pregunta

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

    Resposta

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

  46. Targeta 46

    Pregunta

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

    Resposta

    CN−\mathrm{CN}^{-}

  47. Targeta 47

    Pregunta

    ClO4−\mathrm{ClO}_{4}^{-}

    What is the name of this polyatomic ion?

    Resposta

    Perchlorate

  48. Targeta 48

    Pregunta

    HPO42−\mathrm{HPO}_{4}^{2-}

    What is the name of this polyatomic ion?

    Resposta

    Hydrogen phosphate

  49. Targeta 49

    Pregunta

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

    What is the name of this polyatomic ion?

    Resposta

    Ammonium

  50. Targeta 50

    Pregunta

    CrO42−\mathrm{CrO}_{4}^{2-}

    What is the name of this polyatomic ion?

    Resposta

    Chromate

  51. Targeta 51

    Pregunta

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

    Resposta

    MnO4−\mathrm{MnO}_{4}^{-}

  52. Targeta 52

    Pregunta

    ClO3−\mathrm{ClO}_{3}^{-}

    What is the name of this polyatomic ion?

    Resposta

    Chlorate

  53. Targeta 53

    Pregunta

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

    What is the name of this polyatomic ion?

    Resposta

    Hydronium

  54. Targeta 54

    Pregunta

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

    Resposta

    CO32−\mathrm{CO}_{3}^{2-}

  55. Targeta 55

    Pregunta

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

    Resposta

    NO3−\mathrm{NO}_{3}^{-}

  56. Targeta 56

    Pregunta

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

    Resposta

    OH−\mathrm{OH}^{-}

  57. Targeta 57

    Pregunta

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

    Resposta

    OCN−\mathrm{OCN}^{-}

  58. Targeta 58

    Pregunta

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

    What is the name of this polyatomic ion?

    Resposta

    Oxalate

  59. Targeta 59

    Pregunta

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

    Resposta

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

  60. Targeta 60

    Pregunta

    AsO43−\mathrm{AsO}_{4}^{3-}

    What is the name of this polyatomic ion?

    Resposta

    Arsenate

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

60 targetes

Polyatomic Ion Flashcards: 30 Names, Formulas & Charges

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