1. Compare the properties of solids and liquids by completing the table based on the
kinetic molecular model. Provide a short description of each characteristic for the given
state of matter
CHARACTERISTIC SOLID LIQUID
Intermolecular force
Shape
Volume
Density
Compressibility
Arrangement of particles
Motion of molecules
Fluidity
2. Crossword Puzzle
Directions: Complete the crossword by filling in the boxes to form a word that fits each clue.
Disregard space between two-word phrases or hyphens.
1. This is a special case of a very strong
dipole-dipole interaction.
4. The force that holds atoms together in
a molecule.
6. Intermolecular forces present among
symmetrical nonpolar substances.
8. The attractive force between
molecules.
Down:
2. This is an intermolecular force that acts
between an ion and a polar molecule.
3. A collective term used to define the
attraction of intermolecular forces.
5. These are attractive forces between
polar molecules.
3. Properties of
Liquids
True or False. Write TRUE is the statement is correct and FALSE if otherwise.
1. The vapor pressure is higher for a substance with stronger IMFA.
2. The boiling point of a substance is directly proportional to its heat of vaporization.
3. The normal boiling point is the boiling point of the liquid when the vapor pressure is 1 torr.
4. Acetone has a higher ΔHvap than water.
5. When temperature is high, more molecules have enough energy to escape from the
liquid
4. Properties of Liquids
2. Although steel is denser than water, a steel needle or paper clip placed carefully lengthwise on
the surface of still water can be made to float. Explain at a molecular level how this is possible:
5. 1. Water is a good solvent
Relate this property to the role of water in plant nutrition
Answer: __________________________________________________________________
2. Water has a high specific heat.
Relate this property to changing climate and the capacity of bodies of water to act as temperature
buffer:
Answer: __________________________________________________________________
3. The boiling point of water unusually high
Relate this property to questions on small water bodies drying up:
Answer: __________________________________________________________________
4. Solid water is less dense, and in fact floats on liquid water.
Relate this property to the survival of aquatic organisms in temperate countries:
Answer: __________________________________________________________________
Answer the following questions:
6. Solids and their Properties
Identify the following samples of solids as AMORPHOUS or CRYSTALLINE.
1. Diamond ________________________
2. Plastic ________________________
3. Alum ________________________
4. Gel ________________________
5. Mica ________________________
6. Polymer ________________________
7. Rock salt ________________________
8. Snowflakes ________________________
9. Glass ________________________
10. Wax ________________________
Describe the difference in structure of crystalline and amorphous solids through a graphic organizer.
