1. Drill: Carbon Monoxide Reading: (10 min) Read the Carbon Monoxide Reading and answer the following questions. 1)Why is carbon monoxide so deadly? 2)What about carbon dioxide? Does it have the same effect?

2. Objective: Swbat: Determine molecular shapes in order to predict bond angle and polarity by constructing covalent structures.

3. SAT Enrichment: … and … would form a stable compound. a.Sodium … Calcium b.Lithium … Potassium c.Nitrogen … Krypton d.Aluminum …. Cesium e.Magnesium … Oxygen

4. Extension: Last Class Oil and Water Extension from last class Soap Molecule Simulation: http://intro.bio.umb.edu/111- 112/111F98Lect/soapandoil.html http://intro.bio.umb.edu/111- 112/111F98Lect/soapandoil.html

5. Engagement: Polarity: “Like Dissolves Like” (http://www.jce.divched.org/JCESoft/ CCA/pirelli/pages/cca2like.html)http://www.jce.divched.org/JCESoft/ CCA/pirelli/pages/cca2like.html

6. Covalent Structures How to determine the structure of a compound.

7. Class work Exploration: Covalent Structure worksheet!

8. Explanation: Molecular Model Pre-Lab!

9. Summary Did we accomplish the objective? Explain. How can you determine the structure of a compound using the NASL method? What criteria would you assess to determine the polarity of a compound by knowing its structure? Homework: Instructional Fair pages 41 and 42

10. Drill: Draw the Lewis dot structure of the following compounds and determine their polarity: 1)CCl 4 2)AlCl 3 Objective: Swbat: Determine molecular shapes in order to predict bond angle and polarity by constructing covalent structures.

11. SAT Enrichment: The forces of attraction that hold crystal together are called… a.Ionic b.London dispersion c.Covalent d.Electrovalent e.Metallic

12. Explanation Molecular Model Lab

13. Exploration: VESPR –Theory Teacher: (construct sample models for each shape (linear, bent, trigonal planar, trigonal pyramidal, tetrahedral). Molecules are three dimensional and the electrons spread out to minimize their interactions (like charges repel). Once the Lewis structure is drawn, it is possible to use the VSEPR Theory to predict the molecule’s shape.

14. Exploration: If the molecule is symmetrical along each axis, it is nonpolar. If the molecule is asymmetrical along any of those axes, it is polar.

15. VESPR-Theory Complete the worksheet:

16. Summary: Did we accomplish the objective? Explain. Identify the three types of hybridization and the types of bonds associated with them. What criteria would you assess to determine the bond angle of a compound using the hybridization?

17. Homework: Out Spot: Read the “Out Spot” worksheet and answer the hw question. This homework assignment is an individual assignment. If two homework answers are the same it will be assumed that you cheated. Exit ticket: Covalent Structure