2. Catalyst 1. Fill out the Unit 3 exam reflection. Turn into bin when completed. End

5. Whatever It Takes You will be re-tested on some of this content on the next exam. If you do better on the next exam, then I will replace your Unit 3 exam grade Struggling? YOU must be the one deciding to come in for help during: – Lunch – Nutrition – Before School – After School: Tuesday, Thursday, and/or Friday

6. Unit 4 Theme – The Madness of Fritz Haber

7. Question of the Day How many drops of water can you fit on a penny?

8. Justify – TPS Why do so many drops of water fit on a penny?

9. Lecture 4.1 – Intermolecular Forces and the Dissolving Process

10. Today’s Learning Targets LT 4.1 – I can discuss how ionic solids dissolve due to the random molecular motion of the water molecules. LT 4.2 – I can identify a compound as containing hydrogen bonding, dipole – dipole forces, and Van der Waals forces. LT 4.3 – I can compare and contrast various intermolecular forces and relate them to the dissolving process of a solid.

11. What do solids, liquids, and gases look like?

13. I. Solids Atoms in a solid hold a very fixed position. They are said to be vibrating in place.

14. II. Liquids Atoms in a liquid are further spread out from one another. They flow freely within the solution and are moving in a random motion.

15. III. Gases Atoms in a gas are in constant random motion.

16. Most forces Least forces

17. SUMMARIZE

19. Fritz Haber Reading Answer the questions and annotate the articles You will be turning in an annotated article for a homework grade

20. White Board Races

21. Recap Solid, Liquid, Gas: http://ca.pbslearningmedia.org/content/lsps0 7.sci.phys.matter.naturematter/ http://ca.pbslearningmedia.org/content/lsps0 7.sci.phys.matter.naturematter/ Intermolecular Forces: http://www.wisc- online.com/Objects/ViewObject.aspx?ID=GCH 6804 http://www.wisc- online.com/Objects/ViewObject.aspx?ID=GCH 6804

22. White Board Race Questions Draw what atoms in a solid state look like. What type of movement do they have? What state has the least intermolecular forces? What type of bonds does solution of HF have? C 12 H 24 has no permanent dipoles, what type of intermolecular forces does it have?

23. White Board Races HCl looks like this: What type of intermolecular forces exist in a solution of HCl? What is the strongest intermolecular force? ClH δ-δ- δ+δ+

25. Closing Time