Reviewin g Main Ideas 1. What two theories can be used to predict molecular geometry? 2. Draw the Lewis structure and predict the mo- lecular geometry of the following molecules: a. SO_(2) b. Cl_(4) c. BCl_(3) 3. What factors affect the geometry of a molecule?

1. The two theories that can be used to predict molecular geometry are the Valence Shell Electron Pair Repulsion (VSEPR) theory and the Electron Domain Theory.2. a. The Lewis structure for is:``` O=S=O```The molecular geometry of is bent or V-shaped.b. The Lewis structure for is:``` Cl |Cl-Cl-Cl | Cl```The molecular geometry of is tetrahedral.c. The Lewis structure for is:``` B |Cl-Cl | Cl```The molecular geometry of is trigonal planar.3. The factors that affect the geometry of a molecule are the number of electron pairs (bonding and non-bonding) around the central atom, the repulsion between these electron pairs, and the presence of any lone pairs on the central atom.