Getting to Know and Love the Poly Atomic Ions of Table E When you know them all, you will be happy. You already are smart enough to memorize them even if you don’t have to. Familiarize yourself with each one. (they’re random)

1 MnO4-1

1 MnO4-1 Permanganate

2 CO3-2

2 CO3-2 Carbonate

3 SO3-2

3 SO3-2 Sulfite

4 ClO3-1

4 ClO3-1 Chlorate

5 PO4-3

5 PO4-3 Phosphate

6 HCO3-1

6 HCO3-1 Hydrogen Carbonate

7 NO3-1

7 NO3-1 Nitrate

8 OH-1

8 OH-1 Hydroxide

9 C2O4-2

9 C2O4-2 Oxalate

10 SO4-2

10 SO4-2 Sulfate

11 NH4+1

11 NH4+1 Ammonium

12 NO2-1

12 NO2-1 Nitrite

14 ClO4-1

14 ClO4-1 Perchlorate

15 HSO4-1

15 HSO4-1 Hydrogen Sulfate

16 CN-1

16 CN-1 Cyanide

17 Cr2O7-2

17 Cr2O7-2 Dichromate

18 C2H3O2-1

18 C2H3O2-1 Acetate

19 S2O3-2

19 S2O3-2 Thiosulfate

20 ClO2-1

20 ClO2-1 Chlorite

21 O2-2

21 O2-2 Peroxide

22 ClO-1

22 ClO-1 Hypochlorite

23 SCN-1

23 SCN-1 Thiocyanate

24 Hg2+2

24 Hg2+2 Mercury (I)

25 CrO4-2

25 CrO4-2 Chromate

26 H3O+1

26 H3O+1 This stuff is called the Hydronium Ion. We will learn about it with Acid-Base Chemistry. It’s (in my opinion) the STUPIDEST thing I have to teach you about. It’s always on the Regents, but not for Table E.