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Molecular Shapes. Quiz Review. Admit Slip. Name as many molecular shapes as you can. The Rules. Split into groups of 3. Rotate who answers each question. Each group will get points for participation. All answers should be written down and not shouted out. - PowerPoint PPT Presentation
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MOLECULAR SHAPES
Quiz Review
Admit Slip
Name as many molecular shapes as you can.
The Rules
Split into groups of 3. Rotate who answers each question.
Each group will get points for participation.
All answers should be written down and not shouted out.
The winning group will receive 2 homework points and candy during the quiz Thursday!
200
What are the names of the regions around atoms where the electrons reside in bonds or lone pairs?
400
Why aren’t molecules flat and with all bonding angles at 90º?
800
Draw the Lewis Dot structure of H2O.
a) How many electron domains does oxygen have
b) How many electron domains does each hydrogen have?
200
Most of the molecular shapes we’ve learned have an underlying tetrahedral shape because the central atom has _____ electron domains.
200
Trigonal planar, on the other hand, is a shape caused when the central atom has ____ electron domains.
200
The central atom in the linear molecule CO2 has only ____ electron domains.
400
The molecule H2O has which shape?a) tetrahedral b) pyramidal
c) bentd) linear e) trigonal planar
400
The molecule methane, CH4 has which shape?a) tetrahedral b) pyramidal
c) bentd) linear e) trigonal planar
400
The atom neon, Ne has which shape?a) tetrahedral b) pyramidal
c) bent d) pointe) linear
400
The molecule NH3 has which shape?a) tetrahedral b) pyramidal
c) bentd) linear e) trigonal planar
600
Draw the following molecules as Lewis Dot structures and then identify the shape.CF4
600
Draw the following molecules as Lewis Dot structures and then identify the shape.H2S
600
Draw the following molecules as Lewis Dot structures and then identify the shape.CH2Br2
600
Draw the following molecules as Lewis Dot structures and then identify the shape.CH2O
600
Draw the following molecules as Lewis Dot structures and then identify the shape.CO2
800
Draw the following molecules as Lewis Dot structures and then identify the shape.CH3NH2
Shape on C:
Shape on N:
400
Carbon (C) reacts with bromine (Br) to form carbon tetrabromide (CBr4).
a. Draw the Lewis dot structures for carbon (C) and bromine (Br) individually.
400
b. Draw the Lewis dot structure for carbon tetrabromide (CBr4).
400
c. Identify the shape of the CBr4 molecule as predicted by valence-shell electron-pair repulsion (VSEPR) theory and explain why CBr4 has this shape.
Final Jeopardy
The total amount of points possible is:
8600
Final Jeopardy
Draw the Lewis Dot Structure for:
CH2S
What shape is this molecule and why?