Draw the Lewis structures for ZnO, O2, and H2.

Here are the diagrammatic structures for the compounds:

• 7.1 $\text{ZnO}$ (Zinc Oxide)

  • A simple representation of zinc oxide shows one zinc atom bonded to one oxygen atom.
  • $\boxed{\text{Zn}-\text{O}}$ (Representing Zn as a large grey sphere and O as a medium red sphere).

• 7.2 $\text{O}_2$ (Oxygen molecule)

  • Two oxygen atoms bonded together.
  • $\boxed{\text{O}=\text{O}}$ (Representing O as a medium red sphere).

• 7.3 $\text{H}_2$ (Hydrogen molecule)

  • Two hydrogen atoms bonded together.