1. Or What I am supposed to memorize by Friday
Polyatomic Ions Or
What I am supposed to memorize by Friday

2. NO3-1
Nitrate ion

3. SO3-2
Sulfite ion

4. MnO4-1
Permanganate ion

5. PO4-3
Phosphate ion

6. C2H3O2-1
Acetate ion

7. IO-1
Hypoiodite ion

8. Hydrogen phosphate ion
HPO4-2
Hydrogen phosphate ion

9. ClO-1
Hypochlorite ion

10. NO2-1
Nitrite ion

11. SO4-2
Sulfate ion

12. OH-1
Hydroxide ion

13. IO2-1
Iodite ion

14. CN-1
Cyanide ion

15. ClO2-1
Chlorite ion

16. CO3-2
Carbonate ion

17. CrO4-2
Chromate ion

18. IO4-1
Periodate ion

19. NH4+1
Ammonium ion

20. SiO3-2
Silicate ion

21. ClO3-1
Chlorate ion

22. Dihydrogen phosphate ion
H2PO4-1
Dihydrogen phosphate ion

23. BrO4-1
Perbromate ion

24. HSO4-1
Hydrogen sulfate ion

25. Cr2O7-2
Dichromate ion

26. BrO-1
Hypobromite ion

27. HSO3-1
Hydrogen sulfite ion

28. BrO3-1
Bromate ion

29. Hydrogen carbonate ion
HCO3-1
Hydrogen carbonate ion

30. C2O4-2
Oxalate ion

31. ClO4-1
Perchlorate ion

32. IO3-1
Iodate ion

33. PO3-3
Phosphite ion

34. BrO2-1
Bromite ion

35. Now let’s try the other way.

36. Nitrate ion
NO3-1

37. Sulfite ion
SO3-2

38. Permanganate ion
MnO4-1

39. Phosphate ion
PO4-3

40. Acetate ion
C2H3O2-1

41. Hypoiodite ion
IO-1

42. Hydrogen phosphate ion
HPO4-2

43. Hypochlorite ion
ClO-1

44. Nitrite ion
NO2-1

45. Sulfate ion
SO4-2

46. Hydroxide ion
OH-1

47. Iodite ion
IO2-1

48. Cyanide ion
CN-1

49. Chlorite ion
ClO2-1

50. Carbonate ion
CO3-2

51. Chromate ion
CrO4-2

52. Periodate ion
IO4-1

53. Ammonium ion
NH4+1

54. Silicate ion
SiO3-2

55. Chlorate ion
ClO3-1

56. Dihydrogen phosphate ion
H2PO4-1

57. Perbromate ion
BrO4-1

58. Hydrogen sulfate ion
HSO4-1

59. Dichromate ion
Cr2O7-2

60. Hypobromite ion
BrO-1

61. Hydrogen sulfite ion
HSO3-1

62. Bromate ion
BrO3-1

63. Hydrogen carbonate ion
HCO3-1

64. Oxalate ion
C2O4-2

65. Perchlorate ion
ClO4-1

66. Iodate ion
IO3-1

67. Phosphite ion
PO3-3

68. Bromite ion
BrO2-1