Worksheet: Identifying Ionic and Covalent Bonds

Instructions: Determine whether each compound listed below has an ionic or covalent bond. Write “Ionic” or “Covalent” in the space provided.

1. Sodium chloride (NaCl): ____
2. Water (H2O): ____
3. Carbon dioxide (CO2): ____
4. Magnesium oxide (MgO): ____
5. Methane (CH4): ____
6. Calcium carbonate (CaCO3): ____
7. Ammonia (NH3): ____
8. Sulfuric acid (H2SO4): ____
9. Potassium bromide (KBr): ____
10. Nitrogen gas (N2): ____

Answers:

1. Sodium chloride (NaCl): Ionic
2. Water (H2O): Covalent
3. Carbon dioxide (CO2): Covalent
4. Magnesium oxide (MgO): Ionic
5. Methane (CH4): Covalent
6. Calcium carbonate (CaCO3): Ionic
7. Ammonia (NH3): Covalent
8. Sulfuric acid (H2SO4): Covalent
9. Potassium bromide (KBr): Ionic
10. Nitrogen gas (N2): Covalent