Polystomic Ions

Question 1

What is the formula for ammonium?

Answer 1

NH₄⁺

Question 2

What is the formula for acetate?

Answer 2

C₂H₃O₂⁻

Question 3

What is the formula for cyanide?

Answer 3

CN⁻

Question 4

What is the formula for hydroxide?

Answer 4

OH⁻

Question 5

What is the formula for nitrate?

Answer 5

NO₃⁻

Question 6

What is the formula for nitrite?

Answer 6

NO₂⁻

Question 7

What is the formula for perchlorate?

Answer 7

ClO₄⁻

Question 8

What is the formula for chlorate?

Answer 8

ClO₃⁻

Question 9

What is the formula for chlorite?

Answer 9

ClO₂⁻

Question 10

What is the formula for hypochlorite?

Answer 10

ClO⁻

Question 11

What is the formula for permanganate?

Answer 11

MnO₄⁻

Question 12

What is the formula for hydrogen carbonate (bicarbonate)?

Answer 12

HCO₃⁻

Question 13

What is the formula for carbonate?

Answer 13

CO₃²⁻

Question 14

What is the formula for peroxide?

Answer 14

O₂²⁻

Question 15

What is the formula for hydrogen sulfate (bisulfate)?

Answer 15

HSO₄⁻

Question 16

What is the formula for sulfate?

Answer 16

SO₄²⁻

Question 17

What is the formula for sulfite?

Answer 17

SO₃²⁻

Question 18

What is the formula for dihydrogen phosphate?

Answer 18

H₂PO₄⁻

Question 19

What is the formula for hydrogen phosphate?

Answer 19

HPO₄²⁻

Question 20

What is the formula for phosphate?

Answer 20

PO₄³⁻