If you were legitimately absent, then you are expected to write your test the day you are back.  You have an assignment due Tuesday.  The instructions and rubric for it are on the Unit 1 page for the site, as "Canadian Contrib Assignment".
Have a good weekend.
 
We had an in-class assignment today.  If you were absent, you will have to come at lunch on Monday or Tuesday to complete it.  The unit test is tomorrow.  Remember that you have an assignment on Canadian Contributions to Atomic and Molecular Theory due on Tuesday.
 
Text review is listed in the homework blog of Monday, Feb. 22.  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 yesterday's topic.
The unit test is on Friday, Feb. 26.
 
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 Thursday 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 Tuesday, March 2.  The handout is in class and will be on the unit 1 page of this site.
 
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
 
You should be able to explain how physical properties such as boiling points depend on the types of inter-particle forces present.  Read the example in your text, p.259-260, and consider your answers to p.260#2-5 from yesterday.  These are the type of problem we worked on in class.  Read p.262-263 to help with explaining other physical properties.
Homework:  p.264 #9, 11, 12 and p.266 #1
                   note that ethanol is CH3-CH2-OH
 
You have learned these concepts in the Grade 11 course, so this should be review.
Read p.251-255.  Make notes on how to determine whether a molecule is polar or non-polar.  Answer p.256#8-10, 1-d.
Read p.257-262.  Make notes describing the three intermolecular forces.  Answer p.260 #1-5.
 
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, 21.
 
You should be able to describe how atoms covalently bond by overlapping valence orbitals.  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 tomorrow 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.