Chemistry 11:  We reviewed what diatomic elements were, and a little time was provided to complete the WS titled "Writing Chemical Reaction Equations".  We looked at this animation to acknowledge that during chemical reactions there was no new atoms formed, they simply changed partners.  This idea is called the Law of Conservation of Mass, and is the reason we balance chemical reaction equations.  We reacted some sodium with water.  After going through the steps for balancing reaction equations, we completed the WS titled "Balancing Chemical Equations".  We began writing brief notes on the Categories of Chemical Reactions, and will finish this on Monday.

Wednesday, October 23rd.

Science 8:  We reviewed heating curves first, then we explored the elements on the periodic table.  We did page 192 (# 1, 3-7, 9)f rom the old Science Probe 9 textbook.  In the last few minutes we watched this short clip on Mercury.  

Chemistry 12:  We completed a mini lab that allowed us to see some precipitation reactions.  We used page 4 in our data booklet to determine which product(s) made the low solubility solid, and we used page 3 in our data booklet to help us write the Formula Equations, Complete Ionic Equation, and Net Ionic Equation.  Reading sections 3.3 and 3.4 is useful for learning this skill.  The lab WS is due next class, along with Unit 3 # 1-10, 15, 18, and 20a-d.  Lab 19C is due on Tuesday.