1. Which ionic compound has the SMALLEST lattice energy? a. Cas b. KBr c. Mgo d. NaCl 2. Which bond would be the SHORTEST? a. C-C b. C-C c. CC d. All would be the same length 3. Which correctly shows the charge distribution of a C-F bond? 8+ 8- 8-8+ a. C-F c. C-F d. C-F 4. Calculate the enthalpy (in kJ) for the following reaction using the given bond energies. (10 points) H H HH Bond Bond energy (kJ/mol) b. C-F H C=C + H-CEN H C-H 415 C=C there is no charge c. distribution in a C-Cl bond 611 H-C-C-CEN 11 HH C=N 891 5. State how many central atoms are in the pyrrole molecule (shown right): (2 points) 6. State the hybridization of the nitrogen atom in the pyrole molecule (shown right): (2 points) C-C 347 pyrolle 7. State the number of sigma-bonds (a) and the number of pi-bonds (x) in the pyrrole molecule (shown right): (4 points)