Chemistry 11:  We began with a short lesson on dilutions, where we learned how to use the dilution equation (cf = ci (vi/vf)).  Normally, we like to solve problems from basic principles, but this tool is soooo handy. We did page 104 # 97 and 99 to try it out.  We then completed the Concentration of Ions WS.  Click here to see the key.  In the second half watched this clip to see liquid nitrogen, then we wrote notes about Intermolecular bonding.  After reading 9.3 we began # 8-16 but these are not due on Friday. Test on Atomic Theory and Solution Chemistry next week on the double block.