1. + WELCOME! 1.Organize the materials in your folder in your binder. 2.Get out your homework.

2. + Chair and Trash Challenge No Detention Challenge Homework Small Business

3. + Experiment

4. + How does a safety pin sit on top of water?

5. + 1.Intermolecular bonds are different and weaker than bonds inside molecules such as ___________, ______________, and _______________ bonds. Introduction

6. + 1.Every molecule has London dispersion forces. They occur when an ________________ of one molecule randomly is attracted to the ____________ of another molecule E.g., Propane – Used to power stoves London Dispersion Forces

7. + 1.When Hydrogen bonds with other ___________________ elements (N, O, and F) E.g., H 2 O Hydrogen Bonds

8. + StrengthBoiling Point London Forces Hydrogen

9. + 4.Ions-Ion: Occur when two ____________ molecules are attracted to each other E.g., CaCO 3 makes up eggshells 5.Ion-Dipole: Occurs when an ___________ molecule is attracted to __________molecule E.g., Salt and Water 6.Dipole-dipole: Occurs when ______ polar molecules are attracted to each other E.g., HCl – Stomach acid Hydrogen Bonds

10. + 1)Determine if there is a Hydrogen Bond (N, O, F) 2)Determine if there is a polar covalent or ionic bond (If so it is either ion-ion, dipole-dipole, or ion-dipole) 3)If there is no hydrogen bond, polarity, or ionic bond, then it has London dispersion forces. Determine the Bond Type in the Atom H 2 SO 4 :

11. + 1)Determine if there is a Hydrogen Bond (N, O, F) 2)Determine if there is a polar covalent or ionic bond (If so it is either ion-ion, dipole-dipole, or ion-dipole) 3)If there is no hydrogen bond, polarity, or ionic bond, then it has London dispersion forces. Determine the Bond Type in the Atom HBr:

12. + 1)Determine if there is a Hydrogen Bond (N, O, F) 2)Determine if there is a polar covalent or ionic bond (If so it is either ion-ion, dipole-dipole, or ion-dipole) 3)If there is no hydrogen bond, polarity, or ionic bond, then it has London dispersion forces. Determine the Bond Type in the Atom CH 4 :

13. + 1)Determine if there is a Hydrogen Bond (N, O, F) 2)Determine if there is a polar covalent or ionic bond (If so it is either ion-ion, dipole-dipole, or ion-dipole) 3)If there is no hydrogen bond, polarity, or ionic bond, then it has London dispersion forces. Determine the Bond Type in the Atom NaCl in water

14. + Back to the safety pin

15. + Biochemistry 50% of Chemists: 43,000-$70,000

16. +

17. + Guided Practice Trashketball

18. + Determine if the following molecules are polar or non polar HCl

19. + Determine if the following molecules are polar or non polar C2H4C2H4

20. + H2OH2O

21. + CH 4

22. + Determine what type of intermolecular bond occurs between molecules NH 4

23. + Determine what type of intermolecular bond occurs between molecules HBr

24. + Determine what type of intermolecular bond occurs between molecules MgS

25. + Determine what type of intermolecular bond occurs between molecules NaCl in water

26. + Determine what type of intermolecular bond occurs between molecules C3H8C3H8

27. + What bond is the strongest?

28. + What bond has the highest boiling point?

29. + Independent Practice When you are done raise your hand and I will give you a POM You may not use notes on the POM NO SIDE TALK RULE APPLIES!