Polyatomic ions

Front

What is a polyatomic ion?

Back

A polyatomic ion is a charged species (ion) composed of two or more atoms covalently bonded, which can be considered as a single unit.

Front

What is the charge of the cyanide ion?

Back

The charge of the cyanide ion (CN⁻) is -1.

Front

What is the formula for the carbonate ion?

Back

The formula for the carbonate ion is CO₃²⁻.

Front

What is the name of the ion with the formula ClO₃⁻?

Back

The name of the ion with the formula ClO₃⁻ is chlorate.

Front

What is the formula for the acetate ion?

Back

The formula for the acetate ion is C₂H₃O₂⁻.

Front

What is the charge of the ammonium ion?

Back

The charge of the ammonium ion (NH₄⁺) is +1.

Front

What is the name of the ion with the formula CrO₄²⁻?

Back

The name of the ion with the formula CrO₄²⁻ is chromate.

Front

What is the difference between chlorite and chlorate?

Back

Chlorite has the formula ClO₂⁻ and chlorate has the formula ClO₃⁻; chlorate has one more oxygen atom than chlorite.

Front

What is the formula for the phosphate ion?

Back

The formula for the phosphate ion is PO₄³⁻.

Front

What is the name of the ion with the formula SO₄²⁻?

Back

The name of the ion with the formula SO₄²⁻ is sulfate.