Experiment 13. Shapes of Covalent Molecules Data and Observations: Molecular Lewis Dot No. of Formula Structure regions electron density Electron Pair Geometry No. of bonds Molecular Geometry Bond Angle Polar or nonpolar? (molecule) CH Tetrahedol stipe Tetrahedral 4 109.5 nonpolie CH.CH CH, OH H2O HO NH3 H.O2 C2H4 symmet CH, CH2 75 SO BF CO2 SF. PCIS