answer questions 3,4,6,7, and 8

3. For the following two compounds, draw in all hydrogens and indicate the hybridization of each atom (other than hydrogen). 4. For the following compounds, indicate any bonds that are polarized and show which direction they are polarized. 6. What is the geometry of each of the three possible hybridizations of carbon (sp3,sp2,sp) ? 7. Draw all of the possible isomers of C5H12. 8. For the following structures, decide if there is resonance and, if so, draw the other resonance contributors and show how you get to them using arrow formalism