Polarity

Take out your HW and Periodic Table! Drill Take out your HW and Periodic Table!

Agenda Go over HW Drill – Covalent Bonding on WhiteBoards Demo Polarity Cartoon- Bare Essentials of Polarity Come Back to Demo Polarity Practice Looking Forward

Agenda – 2B Go over HW Check for Understanding Polarity Demo Read Bare Essentials of Polarity Polarity Demo Revisited Degrees of Polarity Exit Slip

Agenda – 3B and 4B Covalent and Ionic Quiz Go over HW – Bare Essentials of Polarity Polarity Demo Revisited Degrees of Polarity Intermolecular Forces Exit Slip

Round # Lewis Structures 1 H2S NF3 CH2Br2 2 CHCl3 HCN N2H2 3 CH2O CS2 C2H4

Demo Styrofoam Water Acetone

Cartoon Bare Essentials of Polarity Read Answer Questions

What is a polar bond? What is a nonpolar bond? Questions to Ask What is a polar bond? What is a nonpolar bond? Look at question 10… answer out loud Compare CO2 and H2O on board Have students draw the Lewis structures

Three Degrees of Polarity Non Polar Covalent Equal sharing of electrons Typically is symmetrical

Three Degrees of Polarity Polar Covalent Unequal sharing of electrons between the atoms Typically is asymmetrical

Three Degrees of Polarity Ionic The more electronegative atom wins and seizes the bonding electrons (transfer) from the weaker atom

Polar or NonPolar? Nonpolar

Polar or NonPolar? Polar

Polar or Nonpolar? WATER Polar

Water vs. Acetone Water Polar Acetone Nonpolar

Styrofoam Made from polystyrene Nonpolar https://answers.yahoo.com/question/index?qid=20100120185258AAcWy7s

Like Dissolves Like Polar compounds tend to dissolve in polar solvents (like water) Non-polar compounds tend to dissolve in non-polar solvents **Know the saying – “Like dissolves Like” 

Looking Forward Wednesday VSEPR Friday Review Tuesday Unit 3 Test

Finish Bare Essentials of Polarity Study for Quiz Next Class HW Finish Bare Essentials of Polarity Study for Quiz In Review Packet - (1-4, 9-10) Next Class Ionic/Covalent Bonding Quiz Finish Up Polarity Intermolecular Forces