Polyatomic Ions

Question 1

CO₃^2-

Answer 1

Carbonate

Question 2

HCO₃^-

Answer 2

Hydrogen carbonate or bicarbonate

Question 3

CH₃COO^-

Answer 3

Acetate

Question 4

CN^-

Answer 4

Cyanide

Question 5

SCN^-

Answer 5

Thiocyanate

Question 6

ClO^-

Answer 6

Hypochlorite

Question 7

ClO₂^-

Answer 7

Chlorite

Question 8

ClO₃^-

Answer 8

Chlorate

Question 9

ClO₄^-

Answer 9

Perchlorate

Question 10

CrO₄^2-

Answer 10

Chromate

Question 11

Cr₂O₇^2-

Answer 11

Dichromate

Question 12

MnO₄^-

Answer 12

Permanganate

Question 13

N₃^-

Answer 13

Azide

Question 14

NH₄⁺

Answer 14

Ammonium

Question 15

NO₂^-

Answer 15

Nitrite

Question 16

NO₃^-

Answer 16

Nitrate

Question 17

OH^-

Answer 17

Hydroxide

Question 18

O₂^2-

Answer 18

Peroxide

Question 19

PO₄^3-

Answer 19

Phosphate

Question 20

HPO₄^2-

Answer 20

Hydrogen phosphate

Question 21

H₂PO₄^-

Answer 21

Dihydrogen phosphate

Question 22

S₂^2-

Answer 22

Disulfide

Question 23

SO₃^2-

Answer 23

Sulfite

Question 24

SO₄^2-

Answer 24

Sulfate

Question 25

HSO₃^-

Answer 25

Hydrogen sulfite or bisulfite

Question 26

HSO₄^-

Answer 26

Hydrogen sulfate or bisulfate

Question 27

S₂O₃^2-

Answer 27

Thiosulfate

Question 28

H₃O⁺

Answer 28

hydronium