Common Polyatomic Ions

Question 1

Name the formula associated with the ion:

Nitrate

Answer 1

NO3-

Question 2

Name the formula associated with the ion:

Ammonium

Answer 2

NH4+

Question 3

Name the formula associated with the ion:

Sulfate

Answer 3

SO4^2-

Question 4

Name the formula associated with the ion:

Hydrogen Sulfate or Bisulfate

Answer 4

HSO4^-

Question 5

Name the formula associated with the ion:

Phosphate

Answer 5

PO4^3-

Question 6

Name the formula associated with the ion:

Hydrogen Phosphate

Answer 6

HPO4^2-

Question 7

Name the formula associated with the ion:

Dihydrogen Phosphate

Answer 7

H2PO4-

Question 8

Name the formula associated with the ion:

Carbonate

Answer 8

CO3^2-

Question 9

Name the formula associated with the ion:

Hydrogen Carbonate or Bicarbonate

Answer 9

HCO3-

Question 10

Name the formula associated with the ion:

Cyanide

Answer 10

CN-

Question 11

Name the formula associated with the ion:

Hydronium

Answer 11

H3O+

Question 12

Name the formula associated with the ion:

Hydroxide

Answer 12

OH-

Question 13

List the two polyatomic cations:

Answer 13

Ammonium, hydronium.

Question 14

Name the formula associated with this ion:

Nitride

Answer 14

N3-

Question 15

Name the formula associated with the ion:

Acetate

Answer 15

C2H3O2-

Question 16

Name the formula associated with the ion:

Sulfite

Answer 16

SO3^2-

Question 17

Name the formula associated with this ion:

Phosphide

Answer 17

P3-

Question 18

0H-

Answer 18

Hydroxide

Question 19

P3-

Answer 19

Phosphide

Question 20

C2H3O2

Answer 20

Acetate

Question 21

NO3-

Answer 21

Nitrate

Question 22

N3-

Answer 22

Nitride

Question 23

H3O+

Answer 23

Hydronium

Question 24

NH4+

Answer 24

Ammonium

Question 25

PO4^3-

Answer 25

Phosphate

Question 26

HPO4^2-

Answer 26

Hydrogen Phosphate

Question 27

H2PO4-

Answer 27

Dihydrogen Phosphate

Question 28

CN-

Answer 28

Cyanide