Naming & Writing Polyatomic Ions and Ionic Compounds

Front

What is a polyatomic ion?

Back

A polyatomic ion is a charged species composed of two or more atoms covalently bonded, which can be considered as a single unit. Examples include sulfate (SO₄²⁻) and ammonium (NH₄⁺).

Front

What is the formula for ammonium?

Back

NH₄⁺

Front

What is the formula for ammonium phosphate?

Back

(NH₄)₃PO₄

Front

What is the formula for carbonate?

Back

CO₃²⁻

Front

What is the formula for sodium nitrate?

Back

NaNO₃

Front

What is the balanced formula for calcium hydroxide?

Back

Ca(OH)₂

Front

How do you name the compound NH₄NO₃?

Back

Ammonium nitrate.

Front

What is the charge of the sulfate ion?

Back

-2 (SO₄²⁻).

Front

What is the formula for the nitrate ion?

Back

NO₃⁻

Front

What is the formula for the phosphate ion?

Back

PO₄³⁻