10 Chemistry Quiz 4: States of Matter and Intermolecular Forces

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1. Molecular polarity is determined by

2 points

bond polarity

molecular geometry

VSEPR

All of the above

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2. What sorts of intermolecular forces are present between molecules of octanol? Select all that apply.

2 points

Hydrogen bonding

Dipole-dipole forces

Electrostatic interactions

London Dispersion Forces

3. Ionic compounds are always ____ at room temperature.

2 points

Solid

Liquid

Gas

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4. What sorts of intermolecular forces are primarily present between molecules of dichloromethane?

2 points

Hydrogen bonding

Dipole-dipole forces

Electrostatic interaction

London Dispersion Forces

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5. Which molecule is NOT capable of hydrogen bonding?

2 points

Water, H2O

Ammonia, NH3

Formaldehyde, H2CO

Hydrogen fluoride, HF

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6. This molecule is

2 points

polar covalent

nonpolar covalent

ionic

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7. Between points D and E, which process is occurring?

2 points

Heating a liquid

Heating a solid

Heating a gas

Freezing

Evaporation

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8. Molecules with stronger intermolecular attractions tend to have ____ boiling points.

2 points

higher

lower

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9. Which correctly describes the particles in a solid?

2 points

Fixed and unmoving in space

Vibrating in place but not rotating or breaking intermolecular attractions

Free to rotate but not free to escape contact with one another

Free to fly through space

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10. Molecules in a liquid have ____ motion. (select all that apply)

2 points

vibrational

rotational

translational

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