Most students completed the test today.  You have an assignment due Friday.  The instructions and rubric for it are on the Unit 1 page for the site, as "Canadian Contrib Assignment".
 
We had an in-class assignment today.  The unit test is tomorrow.  Remember that you have an assignment on Canadian Contributions to Atomic and Molecular Theory due on Friday.
 
Text review is listed in the homework blog of Thursday, Sept. 23.  Further review is found in the document "unit review" found on the unit 1 page of the site.
Tomorrow is the in-class assignment about the types of solids, which was Friday's lesson.
The unit test is on Wednesday, Sept. 28.
 
We discussed the properties of four types of crystalline solids, and the inter-particle forces that cause those properties.There will be an in-class assignment on Tuesday relating to this lesson.  Text references for this topic are p.268-273.
You have an assignment on Canadian Contributions to Atomic and Molecular Theory, due next Friday, October 1.  The assignment handout and one discussing how to gauge the quality of a website are on the unit 1 page of this site.
Homework:  Why do non-polar molecules make soft solids?;  p.264 #9, 11, 12;  p.266 #1-4
 
No class.
The Unit 1 test is on Friday, February 26, 2010.  Text review questions are:    p.282 #8-10, 17-19, 22
p.286 #22, 23, 25-30, 35, 36-38
p.288 #9, 13, 16, 20, 25, 28, 29
 
The three types of intermolecular forces are described on p.257-262.  You should be able to explain how physical properties such as boiling points depend on the types of inter-particle forces present.  There are examples in your text, p.259-260.
Homework:  p.260#1-5
 
We discussed how to determine whether a molecule is polar or non-polar.  Text reference is p.251-255.  Unit test is next Wed., Sept. 29.
Homework:  p.256 #8-10, 1d; VSEPR handout #21, 22
 
VSEPR is an acronym for valence shell electron pair repulsion.  All electron pairs around a central atom are repelled, so take positions around the central atom that are as far from the other electrons as possible while remaining around that atom.  Their positions dictate the shape of the molecule.  Text reference is p.242-248, 798.
Homework:  Use VSEPR theory to predict the molecular shape for each of the following:  HCN, SO2,SO3, [SO4]2-, CH2F2, AsCl5, [NH4]+, [BF4]-.  These are from the handout.  If you have the handout, do #18, 19
 
You should be able to describe how atoms covalently bond by overlapping valence orbitals.  State whether the overlapped orbitals form a sigma bond or a pi bond.  Describe how hybrid orbitals form just prior to bonding and name the hybrid.  For help with this, look on p.231-241 in the text.  There is extra help Monday at lunch.
Homework:  p.235 #8-10, 13, p.238 #18
 
We finished discussing how to draw Lewis structures of ions.  Homework is p.229 #10.
We started learning about valence bond theory, text reference p.231-232.