Thursday, October 28

Thursday was test day. We took the Unit 3 test with 15 multiple choice questions, a page of short calculations and a page of longer calculations.  This day marks the official end of Unit 3.

Unit 4 will begin on Friday. Unit 4 is concerned with the topic of chemical reactions. We will learn what a chemical reaction involves and how different reactions can be characterized based upon their features. We will also learn how to use atom counting as a means of balancing chemical equations via the trial and error method. The unit will end as we focus upon precipitation reactions and learn to predict what precipitate will form as two aqueous solutions of ionic compounds are mixed. There will be virtually no mathematics in this unit. There will be a lot of symbolic representations.