Introduction: watch till you get to the math stuff at the end:


If you have not already done so, or to refresh your memory, watch the video series on balancing equations:  Chemistry 6.1-6.3 from last week's blog, and now onto 6.4:

Practice balancing equations with this worksheet: http://misterguch.brinkster.net/PRA008.pdf 
Answers are given.  You can use the method of guess and check, but I prefer Isaac Teach's little chart.  If you want more practice, google  for "balancing equations worksheet".

But you are probably wondering what I was trying to say in class about ionic equations, well, here is a much better explanation than mine;  please watch this video before you answer the lab questions from class

That was helpful, right?  (Another video you can watch is http://www.youtube.com/watch?v=5bKWM7VG3nI  But now the question is, which cations hooked up with which anions to form the solid precipitates in our experiment?  Well, it takes experience, or else a solubility chart, written by someone who has experience, like the writer of our textbook on page 218.  Read Chapter 8.1-8.2 (Predicting whether a reaction will occur, Reactions in which a solid forms.)  You should now be able to complete the lab questions easily. 
Now a more entertaining version of the same concepts, plus some reasons why this subject is important, as a reward for a job well done:

.LASTLY >>>[Remember the worksheet on naming acids which I handed out in class; it is enough to do the first half of the table (1-8).  If you still have a bit of time, get this done now--no need to memorize anything--I want you to see the patterns because it is helpful to recognize these compounds when you see them.  We used two acids in our lab today; which ones were they, and how can you easily recognize an acid?]  Naming acids Worksheet here:  http://www.csun.edu/~jte35633/worksheets/Chemistry/9-3NamingAcids.pdf

Bring your questions to class; we are now going to spend a little while reviewing  before we go any further, and then we will take some time to play.  Thank you for your good efforts.