__If you were absent, read the text p.387-389. 
Homework:  p.391 #2, 3, 4a

The unit test is next Tuesday.  Review questions are on yesterday's blog.

_Reactions occur because of collisions, but just because molecules collide, that doesn't mean there will be a reaction.  The powerpoint lesson is on the unit 3 page as "collision theory".  Note the summaries of these concepts on p.385, 396.
Homework:  Read p.392-396 and make brief notes; answer p.396 #1, 3, 4; p.408 #10

The unit test will be next Tuesday, Nov.22.  Review questions include:  p.412 #1-2, 7, 9-22, 26, 28-30; p.414 #3, 5-8, 10, 16, 18, 20, 26

Most students wrote a quiz on thermochemistry.  We discussed the use of straw bales as insulation in houses, and the reason that it is not a fire hazard.  We watched a short video to illustrate what happens to reaction rates over time.  The link to the video is on the unit 3 page.
Homework:  read p.392-396

If you were absent today, you can consult the activity we did by opening the document "Sim Instructions" found on the unit 3 page of the grade 12 section of this site.  We used a simulation to investigate what makes a reaction successful, and what changes its rate.
Homework:  Read p.383-386 and make notes of the major concepts.

Read p.360, 362, 365, 367-370 for help with this topic.  There is a slide show about how to measure reaction rates on the unit 3 page, called "measuring reaction rates".  You will need this for an assignment in this unit.
Homework:  p.365 #8, 9; p.371 Practice #3, 4 and Section #1
Note:  There is a quiz on enthalpy changes on Fri.

If a reaction equation is difficult to measure the enthalpy change for, and there are no other equations that will add to make the target equation, we can still use Hess's Law.  The text reference is p.332-334. 
Homework:  p.335 #2,3; p.339 #9, 10a; lab report is due tomorrow

The experiment is found on p.351-352 in the text.  For the Discussion, answer p.352 b-g as well as the following:
r)  What are the significant sources of error?
s)  The accepted value of molar enthalpy of combustion for magnesium is -601.6 kJ/mol.  Suggest specific reasons that your value is higher or lower and explain why.
Hand in the lab report for one of the experiments for this unit on Wednesday.
NOTE:  the note for tomorrow's lesson is on the unit 3 page as "hess enth of form lesson" for you to download

The text reference for today's lesson is p.322-326.
Homework:  p.326 #1-3; p.329 #5; prepare for the experiment on p.351-352 by writing a hypothesis (see the "Prediction" p. 351) and setting up the observation table.

We had a formative quiz on calculating enthalpy from experimental data.  A copy is found on the unit 3 page of this site.  The text reference for the lesson is p.331.
Homework:  p.332 #1; p.339 #1; p.312 # 1, 2, 5

We completed an experiment today, comparing enthalpies of combustion of alcohols, from p. 349-350 in the text.  The discussion questions are:  p.350 b, d, f, h and the following:
k)  Look at the accepted values of enthalpy of combustion of each alcohol shown in (g) on p.350.  Suggest specific reasons that your value differs from the accepted one, stating why it is higher or lower than the accepted value.
If you need practice at the basic mole calculations, there are some questions on p.810, with answers on p.819.