Which pair of molecules will show hydrogen bonding? I. HF and NH3 Il CH;Cl and HCI V. H2O and CH;OH III. CH, and CH3CH3 IV. CH3OH and CH3CH3 I and V I and IV IV only Il and V I and III

11:51 l 5G Question 10 of 25 Submit Select to Draw 1. O3 2. CH3SCH3

For PF5, find: 1. # of valence electrons 2. Draw the Lewis Diagram 3. # of electron groups 4. # of lone pairs 5. electron group geometry drawing & name 6. molecular geometry drawing & name 7. bond angle(s)? 8. polar? 9. resonance?

Select one: 1 O b. H 1.008 3 Li 6.94 4 Be 9.012 5 10 sigma bonds, 6 pi bonds 6 13 sigma bonds, 3 pi bonds 7 со | | C-C-C-C-N O c. 11 sigma bonds, 5 pi bonds O d. 10 sigma bonds, 3 pi bonds The compound with molecular formula C5H-NO has the simple bond connections below with the hydrogens left out. Complete the Lewis structure for this molecule, adding the hydrogens anywhere appropriate and making sure that all atoms have zero formal charges while keeping all electrons paired. How many sigma and pi bonds are present in the molecule? 2 8 B C NOF Ne 10.81 12.011 14.007 15.999 18.998 20.180 9 He 4.003 10