"Survival Organic Chemistry"

1. Write the general rule for determining whether a chemical formula represents an ionic or a
   covalent compound. For example, which of the following formulas describe ionic and/or
   covalent compounds?

NaCl, CO2, CaCl2, HCl, CH3Br, NH4NO3, Ba(NO3)2

2. Draw a Lewis electron-dot structure for each of the covalent molecules below. Include all
   resonance structures if they are needed to adequately represent the bonding in the molecule.
   Identify those compounds containing double and triple bonds. Indicate whether the
   compound is polar or nonpolar. In each compound indicate the magnitude of all bond
   angles.

C2H6, CO2, N2, CH3Cl, C2H4Cl2

Sample Solution