Writing Formulas for Ionic Compounds

Front

What is an ionic compound?

Back

An ionic compound is a chemical compound composed of ions held together by electrostatic forces termed ionic bonding. It typically consists of a metal and a non-metal.

Front

How do you determine the formula for an ionic compound?

Back

To determine the formula for an ionic compound, balance the total positive charge from the cations with the total negative charge from the anions.

Front

What is the formula for potassium oxide?

Back

K₂O

Front

What is the formula for sodium phosphate?

Back

Na₃PO₄

Front

What is the formula for manganese(III) oxide?

Back

Mn₂O₃

Front

What is the formula for sodium chloride?

Back

NaCl

Front

How do Cr³⁺ and O²⁻ ions bond together?

Back

They bond to form Cr₂O₃.

Front

What is the charge of potassium in potassium oxide?

Back

+1

Front

What is the charge of oxygen in potassium oxide?

Back

-2

Front

What is the charge of sodium in sodium phosphate?

Back

+1