Polyatomic Ions

Question 1

Ammonium

Answer 1

NH₄⁺

Question 2

Hydronium

Answer 2

H₃O⁺

Question 3

Mercury (I)

Answer 3

Hg₂²⁺

Question 4

Hypochlorite

Answer 4

ClO^1-

Question 5

Chlorite

Answer 5

ClO₂^1-

Question 6

Chlorate

Answer 6

ClO₃^1-

Question 7

Perchlorate

Answer 7

ClO₄^1-

Question 8

Hypobromite

Answer 8

BrO^1-

Question 9

Bromite

Answer 9

BrO₂^1-

Question 10

Bromate

Answer 10

BrO₃^1-

Question 11

Perbromate

Answer 11

BrO₄^1-

Question 12

Hypoiodite

Answer 12

IO^1-

Question 13

Iodite

Answer 13

IO₂^1-

Question 14

Iodate

Answer 14

IO₃^1-

Question 15

Periodate

Answer 15

IO₄^1-

Question 16

Nitrite

Answer 16

NO₂^1-

Question 17

Nitrate

Answer 17

NO₃^1-

Question 18

Carbonate

Answer 18

CO₃^2-

Question 19

Bicarbonate (Hydrogen Carbonate)

Answer 19

HCO₃^1-

Question 20

Sulfite

Answer 20

SO₃^2-

Question 21

Sulfate

Answer 21

SO₄^2-

Question 22

Bisulfate (Hydrogen Sulfate)

Answer 22

HSO₄^1-

Question 23

Acetate

Answer 23

C₂H₃O₂^1-
or CH₃COO^1-

Question 24

Phosphite

Answer 24

PO₃^3-

Question 25

Phosphate

Answer 25

PO₄^3-

Question 26

Hydrogen Phosphate

Answer 26

HPO₄^2-

Question 27

Dihydrogen Phosphate

Answer 27

H₂PO₄^1-

Question 28

Manganate

Answer 28

MnO₄^2-

Question 29

Permanganate

Answer 29

MnO₄^1-

Question 30

Chromate

Answer 30

CrO₄^2-

Question 31

Dichromate

Answer 31

Cr₂O₇^2-

Question 32

Hydroxide

Answer 32

OH^1-

Question 33

Peroxide

Answer 33

O₂^2-

Question 34

Cyanide

Answer 34

CN^1-

Question 35

Thiocyanide

Answer 35

SCN^1-