Common Polyatomic Ions

What is the formula for Sulfite?

• SO₄²⁻

• SO₂

• SO₃²⁻

• S₂O₃²⁻

What is the formula for Hydroxide?

• OH⁻

• H₂O

• NaOH

• HCl

What is the formula for Phosphite?

• PO₃^3⁻

• PO₄^3⁻

• P₂O₅

• H₃PO₃

What is the charge of the Nitrate ion?

• 0

• -1

• +1

• -2

What is the formula for Chlorite?

• ClO₂^1⁻

• ClO₃^1⁻

• ClO₄^1⁻

• Cl₂O₂^1⁻

Define a Polyatomic Ion.

• A polyatomic ion is a charged species composed of two or more atoms covalently bonded, that can act as a single unit in chemical reactions.

• A polyatomic ion is a single atom with a positive charge.

• A polyatomic ion is a molecule that contains only one type of atom.

• A polyatomic ion is a neutral molecule that does not participate in chemical reactions.

What is the formula for Ammonium?

• NH₄⁺

• NH₃

• NH₂OH

• N₂H₄

What is the charge of the Sulfate ion?

• -1

• 0

• -2

• +2

What is the formula for Phosphate?

• PO₄³⁻

• H₂PO₄⁻

• Na₃PO₄

• Ca₃(PO₄)₂

What is the formula for Nitrite?

• NO₂^-

• NO₃^-

• N₂O

• NH₄⁺