Polyatomic Ions

Question 1

Chemical formula of acetate?

Answer 1

C₂H₃O₂^-

Question 2

Chemical formula of ammonium?

Answer 2

NH₄⁺

Question 3

Chemical formula of carbonate?

Answer 3

CO₃^2-

Question 4

Chemical formula of chlorate?

Answer 4

ClO₃^-

Question 5

Chemical formula of chlorite?

Answer 5

ClO₂^-

Question 6

Chemical formula and color of chromate?

Answer 6

CrO₄^2-

Yellow

Question 7

Chemical formula of cyanide?

Answer 7

CN^-

Question 8

Chemical formula and color of dichromate?

Answer 8

Cr₂O₇^2-

Orange

Question 9

Chemical formula of bicarbonate?

Answer 9

HCO₃^-

Question 10

Chemical formula of bisulfate?

Answer 10

HSO₄^-

Question 11

Chemical formula of hydroxide?

Answer 11

OH^-

Question 12

Chemical formula of hypochlorite?

Answer 12

ClO^-

Question 13

Chemical formula of mercurous?

Answer 13

Hg₂²⁺

Question 14

Chemical formula of nitrate?

Answer 14

NO₃^-

Question 15

Chemical formula of nitrite?

Answer 15

NO₂^-

Question 16

Chemical formula of oxalate?

Answer 16

C₂O₄^2-

Question 17

Chemical formula of perchlorate?

Answer 17

ClO₄^-

Question 18

Chemical formula and color of permanganate?

Answer 18

MnO₄^-

Purple

Question 19

Chemical formula of peroxide?

Answer 19

O₂^2-

Question 20

Chemical formula of phosphate?

Answer 20

PO₄^3-

Question 21

Chemical formula of sulfate?

Answer 21

SO₄^2-

Question 22

Chemical formula of sulfite?

Answer 22

SO₃^2-

Question 23

Chemical formula of thiocyanate?

Answer 23

SCN^-

Question 24

Chemical formula of thiosulfate?

Answer 24

S₂O₃^2-

Question 25

Chemical formula of hydrogen phosphate?

Answer 25

HPO₄^2-

Question 26

Chemical formula of dihydrogen phosphate?

Answer 26

H₂PO₄^-