Chemistry 12:  A short debrief of your electrochemical cells from Lab 21D started our class, followed by lab time and a Minireview of Sections 5.1 to 5.3.  Click here to see the key.  In the second half, we learned to balance half cells, which show the electrons being lost or gained by the reactants.  Complete Unit 5 # 19 (any 6 acidic and any 4 basic equations.).  From last week, make sure you have completed Unit 5 # 1-5 and 7-14.   Click here to see how batteries are made.