Make-Up Work (February 8-12)
Monday
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Bellwork
o Why does boron trichloride become trigonal planar whereas nitrogen trichloride
becomes trigonal pyramidal? Give a reason for both substances.
o What are the bond angles of H2O and NH3? Why is there a difference?
Classwork
o Review Geometries
o Graded assignment
 Draw Structures and name geometries of the following compounds, label the
bond angles, and tell me how many sigma and pi bonds exist.
 BeH2
 HCN
 H2CO
 BH3
 NO2
 CH4
 SiI4
 PCl3
Homework
o Finish classwork
Tuesday
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Bellwork
o What are the bond angles of the following geometries
 Linear
 Trigonal planar
 Bent
 Tetrahedral
 Trigonal pyramidal
 Trigonal bipyramidal
 Octahedral
Classwork
o Go over Friday’s classwork
o Begin Polar vs. Non Polar molecules
 Examples
 Decide which atoms have a slightly positive and a slightly negative
charge. And draw the geometries.
o PF3
o
o
o
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LiOH
SF2
NF3
Practice
 Tell me which molecules have polar bonds and which have non-polar
bonds
o CH4
o Cl2
o SiBr4
o O2
o H2S
o BeCl2
Homework
o Review Geometries
o Go over polarity notes
Wednesday
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Bellwork
o Draw the structure, identify the geometry, and tell whether the bonds are polar or non
polar.
 SiBr4
 HPCl2
 H2S
 CH3Cl
Classwork
o Review Bellwork
o Go over yesterday’s Classwork
o Talk about Molecular polarity
 Practice Problems
 water
 NH3
 dichlorine monoxide
 carbon tetrachloride
 Hydrochloric acid
 CHCl3
o Naming Review
 SO2
 P4O10
 N2O3
 SiF6
 H2CO3
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HI
HClO4
H2SO3
Disulfur dichloride
Dinitrogen tetroxide
Hydrosulfuric acid
Sulfuric acid
FeO
NaBr
Tin(IV) Sulfide
Aluminum Phosphide
Homework
o Finish Classwork
o Review Geometries
 Graded assignment Tomorrow
Thursday
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Bellwork
o Decide if each molecule is polar or non-polar
 SiO2
 CHBr3
 BF3
 NCl3
 H2O
Classwork
o Go over yesterday’s Classwork Review
o Complete Classwork (GRADE)
 For each compound
 Write the name
 Draw and name the structure
 How many sigma and pi bonds?
 Decide whether each bond is polar or non polar.
 Decide whether each molecule is polar or non-polar
 Hybridization
 Angles
 Compounds
 AsCl3
 HClO2
 C2H2
 CCl4
 CO2
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O2
NH3
CS2
CH2O (no name)
H2Se
CCl2F2 (no name)
NCl3
Homework
o Pg 270 #’s 68-77
Friday
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Bellwork
o Prepare for Quiz
 Put everything at the front of the class
 Need a piece of paper and a pencil
Classwork
o Take the Chapter 8 Quiz
o Go over classwork from Friday
 Turn in for a grade
Homework
o Pg 270 #’s 68-77