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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.

這個牌組的閃卡

  1. 閃卡 1

    問題

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

    答案

    ClO2−\mathrm{ClO}_{2}^{-}

  2. 閃卡 2

    問題

    HSO4−\mathrm{HSO}_{4}^{-}

    What is the name of this polyatomic ion?

    答案

    Hydrogen sulfate (bisulfate)

  3. 閃卡 3

    問題

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

    答案

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

  4. 閃卡 4

    問題

    SCN−\mathrm{SCN}^{-}

    What is the name of this polyatomic ion?

    答案

    Thiocyanate

  5. 閃卡 5

    問題

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

    答案

    ClO−\mathrm{ClO}^{-}

  6. 閃卡 6

    問題

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

    What is the name of this polyatomic ion?

    答案

    Thiosulfate

  7. 閃卡 7

    問題

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

    答案

    PO43−\mathrm{PO}_{4}^{3-}

  8. 閃卡 8

    問題

    OCN−\mathrm{OCN}^{-}

    What is the name of this polyatomic ion?

    答案

    Cyanate

  9. 閃卡 9

    問題

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

    答案

    ClO4−\mathrm{ClO}_{4}^{-}

  10. 閃卡 10

    問題

    SO32−\mathrm{SO}_{3}^{2-}

    What is the name of this polyatomic ion?

    答案

    Sulfite

  11. 閃卡 11

    問題

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

    答案

    HPO42−\mathrm{HPO}_{4}^{2-}

  12. 閃卡 12

    問題

    OH−\mathrm{OH}^{-}

    What is the name of this polyatomic ion?

    答案

    Hydroxide

  13. 閃卡 13

    問題

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

    答案

    ClO3−\mathrm{ClO}_{3}^{-}

  14. 閃卡 14

    問題

    SO42−\mathrm{SO}_{4}^{2-}

    What is the name of this polyatomic ion?

    答案

    Sulfate

  15. 閃卡 15

    問題

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

    答案

    AsO43−\mathrm{AsO}_{4}^{3-}

  16. 閃卡 16

    問題

    NO3−\mathrm{NO}_{3}^{-}

    What is the name of this polyatomic ion?

    答案

    Nitrate

  17. 閃卡 17

    問題

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

    答案

    BrO3−\mathrm{BrO}_{3}^{-}

  18. 閃卡 18

    問題

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

    What is the name of this polyatomic ion?

    答案

    Dichromate

  19. 閃卡 19

    問題

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

    答案

    HCO3−\mathrm{HCO}_{3}^{-}

  20. 閃卡 20

    問題

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

    What is the name of this polyatomic ion?

    答案

    Acetate

  21. 閃卡 21

    問題

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

    答案

    IO3−\mathrm{IO}_{3}^{-}

  22. 閃卡 22

    問題

    CN−\mathrm{CN}^{-}

    What is the name of this polyatomic ion?

    答案

    Cyanide

  23. 閃卡 23

    問題

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

    答案

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

  24. 閃卡 24

    問題

    O22−\mathrm{O}_{2}^{2-}

    What is the name of this polyatomic ion?

    答案

    Peroxide

  25. 閃卡 25

    問題

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

    答案

    CrO42−\mathrm{CrO}_{4}^{2-}

  26. 閃卡 26

    問題

    NO2−\mathrm{NO}_{2}^{-}

    What is the name of this polyatomic ion?

    答案

    Nitrite

  27. 閃卡 27

    問題

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

    答案

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

  28. 閃卡 28

    問題

    CO32−\mathrm{CO}_{3}^{2-}

    What is the name of this polyatomic ion?

    答案

    Carbonate

  29. 閃卡 29

    問題

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

    答案

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

  30. 閃卡 30

    問題

    MnO4−\mathrm{MnO}_{4}^{-}

    What is the name of this polyatomic ion?

    答案

    Permanganate

  31. 閃卡 31

    問題

    ClO2−\mathrm{ClO}_{2}^{-}

    What is the name of this polyatomic ion?

    答案

    Chlorite

  32. 閃卡 32

    問題

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

    答案

    SO42−\mathrm{SO}_{4}^{2-}

  33. 閃卡 33

    問題

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

    What is the name of this polyatomic ion?

    答案

    Dihydrogen phosphate

  34. 閃卡 34

    問題

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

    答案

    SCN−\mathrm{SCN}^{-}

  35. 閃卡 35

    問題

    IO3−\mathrm{IO}_{3}^{-}

    What is the name of this polyatomic ion?

    答案

    Iodate

  36. 閃卡 36

    問題

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

    答案

    HSO4−\mathrm{HSO}_{4}^{-}

  37. 閃卡 37

    問題

    PO43−\mathrm{PO}_{4}^{3-}

    What is the name of this polyatomic ion?

    答案

    Phosphate

  38. 閃卡 38

    問題

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

    答案

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

  39. 閃卡 39

    問題

    BrO3−\mathrm{BrO}_{3}^{-}

    What is the name of this polyatomic ion?

    答案

    Bromate

  40. 閃卡 40

    問題

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

    答案

    O22−\mathrm{O}_{2}^{2-}

  41. 閃卡 41

    問題

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

    答案

    SO32−\mathrm{SO}_{3}^{2-}

  42. 閃卡 42

    問題

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

    答案

    NO2−\mathrm{NO}_{2}^{-}

  43. 閃卡 43

    問題

    ClO−\mathrm{ClO}^{-}

    What is the name of this polyatomic ion?

    答案

    Hypochlorite

  44. 閃卡 44

    問題

    HCO3−\mathrm{HCO}_{3}^{-}

    What is the name of this polyatomic ion?

    答案

    Hydrogen carbonate (bicarbonate)

  45. 閃卡 45

    問題

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

    答案

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

  46. 閃卡 46

    問題

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

    答案

    CN−\mathrm{CN}^{-}

  47. 閃卡 47

    問題

    ClO4−\mathrm{ClO}_{4}^{-}

    What is the name of this polyatomic ion?

    答案

    Perchlorate

  48. 閃卡 48

    問題

    HPO42−\mathrm{HPO}_{4}^{2-}

    What is the name of this polyatomic ion?

    答案

    Hydrogen phosphate

  49. 閃卡 49

    問題

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

    What is the name of this polyatomic ion?

    答案

    Ammonium

  50. 閃卡 50

    問題

    CrO42−\mathrm{CrO}_{4}^{2-}

    What is the name of this polyatomic ion?

    答案

    Chromate

  51. 閃卡 51

    問題

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

    答案

    MnO4−\mathrm{MnO}_{4}^{-}

  52. 閃卡 52

    問題

    ClO3−\mathrm{ClO}_{3}^{-}

    What is the name of this polyatomic ion?

    答案

    Chlorate

  53. 閃卡 53

    問題

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

    What is the name of this polyatomic ion?

    答案

    Hydronium

  54. 閃卡 54

    問題

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

    答案

    CO32−\mathrm{CO}_{3}^{2-}

  55. 閃卡 55

    問題

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

    答案

    NO3−\mathrm{NO}_{3}^{-}

  56. 閃卡 56

    問題

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

    答案

    OH−\mathrm{OH}^{-}

  57. 閃卡 57

    問題

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

    答案

    OCN−\mathrm{OCN}^{-}

  58. 閃卡 58

    問題

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

    What is the name of this polyatomic ion?

    答案

    Oxalate

  59. 閃卡 59

    問題

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

    答案

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

  60. 閃卡 60

    問題

    AsO43−\mathrm{AsO}_{4}^{3-}

    What is the name of this polyatomic ion?

    答案

    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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