3-3 Practice: Covalent Nomenclature and Lewis Structures

Master covalent naming, Lewis structures, and molecular geometry with this chemistry practice worksheet!

1. Write the formulas for the following compounds. BEWARE: There is a mix of ionic and covalent! Name Formula Ammonia NH3 Nitrogen trifluoride NF3 Iron (III) Bromide FeBr3 Sulfur dioxide SO2 Magnesium Sulfide MgS Zinc (II) Hydroxide Zn(OH)2 Phosphorus Pentachloride PCl5 Carbon Monoxide CO Lithium Phosphate Li3PO4 2. Write the name for the following formulas. BEWARE: There is a mix of ionic and covalent! Formula Name NF3 Nitrogen trifluoride SO3 Sulfur trioxide CaCO3 Calcium carbonate N2O Dinitrogen monoxide NH4NO3 Ammonium nitrate OS2 Oxygen disulfide CH4 Methane KBr Potassium Bromide Na2SO4 Sodium Sulfate 3. Draw the Lewis structure for a Hydrogen molecule and state its geometry. 4. Draw the Lewis structure for a Fluorine molecule and state its geometry. 5. Draw the Lewis structure for carbon dioxide and state its geometry. 6. Draw the Lewis structure for Oxygen difluoride and state its geometry. 7. Draw the Lewis structure for water and state its geometry. 8. Draw the Lewis structure for Arsenic trifluoride and state its geometry. 9. Draw the Lewis structure for Carbon tetrafluoride and state its geometry. 10. Draw the Lewis structure for boron trichloride and state its geometry. 11. Draw the Lewis structure for Sulfur dihydride and state its geometry. 12. Draw the Lewis structure for Methane (CH4) and state its geometry.