1. IMF and 1 formal charge review

2. What is the main intermolecular force for H2S?
Dispersion Dipole-Dipole Hydrogen bonding Ionic bonding
Blue- Polar molecule

3. What is the main intermolecular force for SO?
Ionic bonding Dipole-dipole Hydrogen bonding Dispersion
Blue- Polar bond

4. What is the main intermolecular force for N2H2?
Hydrogen bonding Ionic bonding Dipole-dipole Dispersion
Green- Hydrogen bonding is FON! 

5. What is the main intermolecular force for BH3?
Dipole-Dipole Ionic Bonding Dispersion Hydrogen bonding
Pink – NP molecule

6. Which of the following would have the largest dispersion force?
Br2 Cl2 F2
Yellow – largest mass or number of electrons

7. Which of the following would have the largest dipole-dipole attraction?
Br2 Ne HCl N2
Blue – only compound that is polar

8. Would HCl hydrogen bond?
Yes No
Blue – Hydrogen bonding is FON!!!!!!!!

9. Rank the following substances in terms of increasing boiling points: HBr, O2, CH3OH
CH3OH, O2, HBr O2, CH3OH, HBr HBr, CH3OH, O2 O2, HBr, CH3OH
Blue – NP, P, then Hydrogen

10. Rank the following substances in terms of increasing boiling points: H2O, NaCl, CH4, CO and CO2
CO2, CH4, H2O, CO, NaCl NaCl, H2O, CO2, CO, CH4 H2O, CO, CH4, NaCl, CO2 CH4, CO2, CO, H2O, NaCl
Pink – NP, CH4 is less mass than CO2, CO = Polar, Hydrogen bonding, Ionic

11. What is the formal charge of Nitrogen in:
Pink – 5 – 0 – ½(8) = 1