Polyatomic Ions

What is the formula for the ammonium ion?

• NH₄⁺

• NH₃⁻

• NH₂⁺

• NH₄²⁻

Which ion has the formula H₃O⁺?

• Hydronium

• Hydroxide

• Peroxide

• Cyanide

What is the formula for the mercurous ion?

• Hg₂²⁺

• Hg⁺

• Hg²⁺

• Hg₃²⁺

Which ion is represented by OH⁻?

• Hydroxide

• Hydronium

• Peroxide

• Cyanide

What is the formula for the peroxide ion?

• O₂²⁻

• O₂⁻

• O₃²⁻

• O⁻

Which ion has the formula CN⁻?

• Cyanide

• Chlorate

• Nitrate

• Bromate

What is the formula for the nitrate ion?

• NO₃⁻

• NO₂⁻

• NO⁻

• NO₄⁻

Which ion is represented by ClO₃⁻?

• Chlorate

• Chlorite

• Hypochlorite

• Perchlorate

What is the formula for the sulfate ion?

• SO₄²⁻

• SO₃²⁻

• SO₂⁻

• SO₄⁻

Which ion has the formula CO₃²⁻?

• Carbonate

• Bicarbonate

• Phosphate

• Sulfate