Science 421 December 21

• Notes/Discussion “Lab Expectations”
• Students completed Investigation 6.2 “Measuring Masses in Chemical Changes” (Pages 220-221)
• Lab Report passed in (Answers to questions a-h and #1-6 on pages 220-221)

Chemistry 521 December 21

• Reviewed Intermolecular Forces and predicting boiling points/melting points
• Corrected Sheets G31, G32, G33
• Completed In-class assignment on Structure and Properties (50 marks)

Science 421 December 18

• Corrected Homework – Sheet “Chemistry 521-Balancing Chemical Equations Worksheet #1″
• Completed Sheet “Balancing Equations Worksheet #2″
• Completed examples “Translating Word Equations Into Balanced Chemical Equations”
• Complete Questions #1-32 on sheet “Equations”
• Returned Chemistry Test #2

Chemistry 521 December 18

• Polarity Assignment due today
• Reviewed Intermolecular Forces (between) Molecules and the impact on the properties (boiling point and melting point)
• Definitions and explanations for “London dispersion forces and dipole-dipole forces (van der waals forces)”
• Completed, and corrected,  sheets G26 and G30
• Notes/discussion “Hydrogen Bonding”
• Complete Sheets G31, G32 and G33
• Inclass assignment on Monday, December 21

Science 421 December 17

• Corrected #1-4 page 219 and #1-6 page 223
• Reviewed Chemical Equations (and tips for balancing chemical equations)
• Corrected Blackline Master 6.5b, Balancing Act and Balance the Following  Chemical Equations
• Completed some examples of  Balancing Chemical Equations
• Complete Sheet “Chemistry 521 – Balancing Equations Worksheet #1″
• Monday, December 21 - Lab “Investigation 6.2″ pages 220-221

Chemistry 521 December 17

• Corrected Questions #13-20 on Sheet “Bonds as a Continuum Continued”
• Reviewed “Polarity of Molecules (pages 194-196)”. Completed 5 on the board for review.
• Discussed the difference between bond polarity and molecule polarity
• Notes/Discussion “Intermolecular Forces” (dispersion and dipole-dipole)
• Polarity Assignment due tomorrow: Draw the structural diagram, shape diagram (with partially positive and partially negatives) and indicate if the molecule is polar or nonpolar: H2O, O2,H2S, CH4, CH3F, OBr2, PF3, CH2O, CH3OH, N2, C2H2, Si2H6, C2H4, C2H3F, C2H3Cl, CO2, NCl2F and HF
• Monday December 21 – Inclass Assignment

Science 421 December 16

• “Notes/Discussion “Chemical Equations”
• Completed Sheet “Blackline Master 6.5b Counting Atoms Worksheet”
• Tips for Balancing Chemical Equations
• Completed “Balancing Act”
• Complete Sheet “Balance the Following Chemical Equations”

Chemistry 521 December 16

• Notes/Discussion  “Polarity of Molecules”
• Read page 184  and write a short note to answer the question “Why does the shape of a molecule matter?” (pass in)
• Complete some molecules on the board #1-9
• Complete Practice Problems #8-10 page 196

Science 421 December 15

• Chemistry Test #2 “Ionic and Molecular Compounds -naming/writing formulas for ionic and molecular compounds”
• Complete Questions #1-4 page 219 and #1-6 page 223 and Read Investigation 6.2 pages 220-221

Chemistry 521

• Reviewed types of covalent bonds (bonds as a continuum)
• Corrected Practice Problems #7-9 page 178
• Completed/Corrected Questions #1-12 on Sheet “Bonds as a Continuum Continued”
• Complete Questions #13-19 on sheet “Bonds as a Continuum Continued”