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Midterm

CHEM 121 Study Guide - Midterm Guide: Boiling Point, London Dispersion Force, Bromine


Department
Chemistry
Course Code
CHEM 121
Professor
Tamara Kunz
Study Guide
Midterm

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November 15th, 2011 (Review Session)
November-15-11
8:04 AM
Chapter 5: Intermolecular Forces
Breaking forces between molecules
Types of Forces
London Forces
Induced dipole (in everything)
Fleeting
Dipole-dipole Forces
Look at VSEPR structure to determine if molecule is polar
Permanent
Hydrogen Bonds
H's bound to F, O, N
Types of Solids
1. Decide what room temperature physical state is (if possible)
S8S
CH4G
P4S
I2S
C60 S
Cl2/F2G
Br2L
H2O L
SiO2S
1. Gas < Liquid < Solid
2. Solids: Non-polar molecule < Polar molecule < Network covalent in
terms of boiling and melting points
Network covalent = 3D
1. Ionic bonding the strongest due to electron transfer; electrostatic
attraction
2. Molecular weight: higher weight = higher melting and boiling point
Chapter 6
[consult beginning of October 11 lecture]
Writing Equations
Cations written first before anions
Reactions occur with minimal bond breaking/forming
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