VSEPR
Is the molecule CH3F symmetrical or asymmetrical?
Asymmetrical
What is the polarity of CH4?
Nonpolar
Which is the strongest intermolecular force: London dispersion, dipole-dipole, or Hydrogen bonding?
Hydrogen bonding
What is the name of the point where solids, liquids, and gases are all at equilibrium on a phase diagram?
Triple point
How would you define polarizability?
The tendency of matter to obtain a dipole moment; how easily an electron cloud is distorted by an electric field.
What is the molecular geometry (shape) of H2O?
Bent
What is the polarity of CO2?
Nonpolar
What is necessary for Hydrogen bonding?
Hydrogen is bonded to a lone pair on F, O, or N; Hydrogen is partially positive
What is the phase change from solid to gas?
Sublimation
What are the 2 things polarizability is based on?
Mass and shape
What is the molecular geometry (shape) of KrF2?
Linear
True or false: An asymmetrical molecule is always polar. There are no exceptions.
False
Identify the most likely types of intermolecular forces between CHCl3 molecules.
London dispersion, dipole-dipole, and Hydrogen bonding
Label each part of the phase diagram as solid, liquid, and gas.
Draw.
Explain polarizability based on mass and shape.
Larger (higher mass) and longer (less compact) molecules are more polarizable.
What is the molecular geometry (shape) for XeF4?
Square planar
What is the polarity of a bent molecule?
Polar
What type of intermolecular force is the main bonding part of DNA?
Hydrogen bonding
What are the labels for the two axes on a phase diagram?
Pressure (y) and temperature (x)
Which would be more polarizable: Ar or He?
Ar
What is the molecular geometry (shape) for BrF3?
T-shaped
What is the polarity of BrF3?
Polar
Which molecule would have the highest boiling point: HCl or H2O? Why?
H2O due to Hydrogen bonding
What does the solid-liquid boundary line indicate about the density of the substance?
The solid is more dense than the liquid (positive slope).
Which would be more polarizable: pentane or neo-pentane?
Pentane