AnswersSY2026-27 - 2003340 Chemistry 1 Sem 2 CRWriting and Balancing Chemical Equations

Liquids Answers

0 verified answers1 views
1
Free Preview

Valerie wants to examine the properties of a thick liquid but is finding it difficult to pour the liquid into a beaker. She needs to finish her investigation before the end of class. Which method will allow her to pour the liquid easily?

A
boiling the liquid vigorously
B
applying heat to the liquid
C
placing the liquid in the refrigerator
D
mixing the liquid with another solution
2
Free Preview

What is produced on the top of a pool of water by the mutual attraction between water molecules?

A
surfactant
B
surface tension
C
a much smaller volume
D
a much higher density
3

Which term best describes the substances that cause oil and water molecules in salad dressing to interact and mix?

A
surfactants
B
miscible liquids
C
immiscible liquids
D
compressed molecules
4

What happens as a result of the kinetic energy of the particles in a liquid being comparable with the intermolecular attractions between the particles?

A
The particles do not move enough to change positions, so the liquid is not compressible.
B
The particles move enough that they separate from one another and take the shape of their container.
C
The particles do not move enough, so they are fixed in place, and the liquid has a fixed volume.
D
The particles move enough that they are not fixed in place, and the liquid can flow.
5

Which molecules would most likely cause a liquid to have the lowest viscosity?

A
large, polar molecules
B
small, nonpolar molecules
C
small, polar molecules
D
large, nonpolar molecules
6

Which type of substance is water able to dissolve?

A
nonpolar
B
ionic
C
polar
D
ionic and polar
7

Which postulate of the kinetic-molecular theory applies to the particles of a liquid?

A
They do not move freely but vibrate in a stationary position.
B
They can be compressed, which causes a large change in volume.
C
They have so much kinetic energy that their intermolecular forces are negligible.
D
They have enough kinetic energy to easily slide by each other.
8

Which term best describes liquid behavior under pressure?

A
incompressible
B
compressed
C
immiscible
D
surfactant
9

Glycerol boils at a higher temperature than water. What does this indicate about the attractive forces of glycerol?

A
They are nonexistent.
B
They are the same as those in water.
C
They are stronger than those in water.
D
They are weaker than those in water.
10

Which process most likely takes place when the kinetic energy of molecules overcomes the intermolecular forces?

A
boiling
B
condensation
C
freezing
D
solidification

Did you find these answers helpful?