1a. What atomic or hybrid orbitals make up the sigma bond between C2 and Cl in dichloroethylene, CH2CCl2?
1b. What is the approximate C1-C2-Cl bond angle?
2a. What atomic or hybrid orbitals make up the sigma bond between P and Cl in phosphorous pentachloride, PCl5
2b. What are the approximate Cl-P-Cl bond angles ? (list all possible)
3a. What atomic or hybrid orbitals make up the sigma bond between I and I in triiodide ion, I3-?
3b. What is the approximate I-I-I bond angle?