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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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על החפיסה הזו

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.

הכרטיסים בחפיסה הזו

  1. כרטיס 1

    שאלה

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

    תשובה

    ClO2−\mathrm{ClO}_{2}^{-}

  2. כרטיס 2

    שאלה

    HSO4−\mathrm{HSO}_{4}^{-}

    What is the name of this polyatomic ion?

    תשובה

    Hydrogen sulfate (bisulfate)

  3. כרטיס 3

    שאלה

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

    תשובה

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

  4. כרטיס 4

    שאלה

    SCN−\mathrm{SCN}^{-}

    What is the name of this polyatomic ion?

    תשובה

    Thiocyanate

  5. כרטיס 5

    שאלה

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

    תשובה

    ClO−\mathrm{ClO}^{-}

  6. כרטיס 6

    שאלה

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

    What is the name of this polyatomic ion?

    תשובה

    Thiosulfate

  7. כרטיס 7

    שאלה

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

    תשובה

    PO43−\mathrm{PO}_{4}^{3-}

  8. כרטיס 8

    שאלה

    OCN−\mathrm{OCN}^{-}

    What is the name of this polyatomic ion?

    תשובה

    Cyanate

  9. כרטיס 9

    שאלה

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

    תשובה

    ClO4−\mathrm{ClO}_{4}^{-}

  10. כרטיס 10

    שאלה

    SO32−\mathrm{SO}_{3}^{2-}

    What is the name of this polyatomic ion?

    תשובה

    Sulfite

  11. כרטיס 11

    שאלה

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

    תשובה

    HPO42−\mathrm{HPO}_{4}^{2-}

  12. כרטיס 12

    שאלה

    OH−\mathrm{OH}^{-}

    What is the name of this polyatomic ion?

    תשובה

    Hydroxide

  13. כרטיס 13

    שאלה

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

    תשובה

    ClO3−\mathrm{ClO}_{3}^{-}

  14. כרטיס 14

    שאלה

    SO42−\mathrm{SO}_{4}^{2-}

    What is the name of this polyatomic ion?

    תשובה

    Sulfate

  15. כרטיס 15

    שאלה

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

    תשובה

    AsO43−\mathrm{AsO}_{4}^{3-}

  16. כרטיס 16

    שאלה

    NO3−\mathrm{NO}_{3}^{-}

    What is the name of this polyatomic ion?

    תשובה

    Nitrate

  17. כרטיס 17

    שאלה

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

    תשובה

    BrO3−\mathrm{BrO}_{3}^{-}

  18. כרטיס 18

    שאלה

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

    What is the name of this polyatomic ion?

    תשובה

    Dichromate

  19. כרטיס 19

    שאלה

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

    תשובה

    HCO3−\mathrm{HCO}_{3}^{-}

  20. כרטיס 20

    שאלה

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

    What is the name of this polyatomic ion?

    תשובה

    Acetate

  21. כרטיס 21

    שאלה

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

    תשובה

    IO3−\mathrm{IO}_{3}^{-}

  22. כרטיס 22

    שאלה

    CN−\mathrm{CN}^{-}

    What is the name of this polyatomic ion?

    תשובה

    Cyanide

  23. כרטיס 23

    שאלה

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

    תשובה

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

  24. כרטיס 24

    שאלה

    O22−\mathrm{O}_{2}^{2-}

    What is the name of this polyatomic ion?

    תשובה

    Peroxide

  25. כרטיס 25

    שאלה

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

    תשובה

    CrO42−\mathrm{CrO}_{4}^{2-}

  26. כרטיס 26

    שאלה

    NO2−\mathrm{NO}_{2}^{-}

    What is the name of this polyatomic ion?

    תשובה

    Nitrite

  27. כרטיס 27

    שאלה

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

    תשובה

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

  28. כרטיס 28

    שאלה

    CO32−\mathrm{CO}_{3}^{2-}

    What is the name of this polyatomic ion?

    תשובה

    Carbonate

  29. כרטיס 29

    שאלה

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

    תשובה

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

  30. כרטיס 30

    שאלה

    MnO4−\mathrm{MnO}_{4}^{-}

    What is the name of this polyatomic ion?

    תשובה

    Permanganate

  31. כרטיס 31

    שאלה

    ClO2−\mathrm{ClO}_{2}^{-}

    What is the name of this polyatomic ion?

    תשובה

    Chlorite

  32. כרטיס 32

    שאלה

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

    תשובה

    SO42−\mathrm{SO}_{4}^{2-}

  33. כרטיס 33

    שאלה

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

    What is the name of this polyatomic ion?

    תשובה

    Dihydrogen phosphate

  34. כרטיס 34

    שאלה

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

    תשובה

    SCN−\mathrm{SCN}^{-}

  35. כרטיס 35

    שאלה

    IO3−\mathrm{IO}_{3}^{-}

    What is the name of this polyatomic ion?

    תשובה

    Iodate

  36. כרטיס 36

    שאלה

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

    תשובה

    HSO4−\mathrm{HSO}_{4}^{-}

  37. כרטיס 37

    שאלה

    PO43−\mathrm{PO}_{4}^{3-}

    What is the name of this polyatomic ion?

    תשובה

    Phosphate

  38. כרטיס 38

    שאלה

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

    תשובה

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

  39. כרטיס 39

    שאלה

    BrO3−\mathrm{BrO}_{3}^{-}

    What is the name of this polyatomic ion?

    תשובה

    Bromate

  40. כרטיס 40

    שאלה

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

    תשובה

    O22−\mathrm{O}_{2}^{2-}

  41. כרטיס 41

    שאלה

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

    תשובה

    SO32−\mathrm{SO}_{3}^{2-}

  42. כרטיס 42

    שאלה

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

    תשובה

    NO2−\mathrm{NO}_{2}^{-}

  43. כרטיס 43

    שאלה

    ClO−\mathrm{ClO}^{-}

    What is the name of this polyatomic ion?

    תשובה

    Hypochlorite

  44. כרטיס 44

    שאלה

    HCO3−\mathrm{HCO}_{3}^{-}

    What is the name of this polyatomic ion?

    תשובה

    Hydrogen carbonate (bicarbonate)

  45. כרטיס 45

    שאלה

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

    תשובה

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

  46. כרטיס 46

    שאלה

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

    תשובה

    CN−\mathrm{CN}^{-}

  47. כרטיס 47

    שאלה

    ClO4−\mathrm{ClO}_{4}^{-}

    What is the name of this polyatomic ion?

    תשובה

    Perchlorate

  48. כרטיס 48

    שאלה

    HPO42−\mathrm{HPO}_{4}^{2-}

    What is the name of this polyatomic ion?

    תשובה

    Hydrogen phosphate

  49. כרטיס 49

    שאלה

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

    What is the name of this polyatomic ion?

    תשובה

    Ammonium

  50. כרטיס 50

    שאלה

    CrO42−\mathrm{CrO}_{4}^{2-}

    What is the name of this polyatomic ion?

    תשובה

    Chromate

  51. כרטיס 51

    שאלה

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

    תשובה

    MnO4−\mathrm{MnO}_{4}^{-}

  52. כרטיס 52

    שאלה

    ClO3−\mathrm{ClO}_{3}^{-}

    What is the name of this polyatomic ion?

    תשובה

    Chlorate

  53. כרטיס 53

    שאלה

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

    What is the name of this polyatomic ion?

    תשובה

    Hydronium

  54. כרטיס 54

    שאלה

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

    תשובה

    CO32−\mathrm{CO}_{3}^{2-}

  55. כרטיס 55

    שאלה

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

    תשובה

    NO3−\mathrm{NO}_{3}^{-}

  56. כרטיס 56

    שאלה

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

    תשובה

    OH−\mathrm{OH}^{-}

  57. כרטיס 57

    שאלה

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

    תשובה

    OCN−\mathrm{OCN}^{-}

  58. כרטיס 58

    שאלה

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

    What is the name of this polyatomic ion?

    תשובה

    Oxalate

  59. כרטיס 59

    שאלה

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

    תשובה

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

  60. כרטיס 60

    שאלה

    AsO43−\mathrm{AsO}_{4}^{3-}

    What is the name of this polyatomic ion?

    תשובה

    Arsenate

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

60 כרטיסים

Polyatomic Ion Flashcards: 30 Names, Formulas & Charges

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