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

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Presentation transcript:

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

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

Unit 4 Theme – The Madness of Fritz Haber

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

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

Lecture 4.1 – Intermolecular Forces and the Dissolving Process

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.

What do solids, liquids, and gases look like?

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

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.

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

Most forces Least forces

SUMMARIZE

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

White Board Races

Recap Solid, Liquid, Gas: 7.sci.phys.matter.naturematter/ 7.sci.phys.matter.naturematter/ Intermolecular Forces: online.com/Objects/ViewObject.aspx?ID=GCH online.com/Objects/ViewObject.aspx?ID=GCH 6804

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?

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+

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