1) Explain the difference in polarity between CO2 and SO2 based on their molecular shapes.

2) Describe the similarities between H3O+ and NH3. Compare/contrast their shapes and polarities within the context of your answer. These molecules are called isoelectronic. Why?

3) What information about a molecule can you gain from the Lewis-dot structure? Is it possible to determine molecular geometry based upon a Lewis structure? Explain your response.

4) What is the difference between electron geometry and molecular geometry? How can knowing both assist in determining whether a molecule is polar or nonpolar?