AnswersFL-2003350-Chemistry 1 HonorsLiquids

Liquids — Unit test Answers

12 verified answers3 views
1
Free Preview

Which sequence represents the relationship between pressure and volume of an ideal gas as explained by the kinetic-molecular theory?

A
more gas particles more collisions higher pressure
Option A
B
smaller volume crowded particles less collisions lower pressure
Option B
C
smaller volume crowded particles more collisions higher pressure
Option C
D
more gas particles more kinetic energy more volume higher pressure
Option D
2
Free Preview

When the process of condensation occurs, the kinetic energy of particles

A
is insufficient to overcome intermolecular forces.
B
becomes independent of temperature.
C
becomes exactly equal to the intermolecular forces.
D
easily overcomes the intermolecular forces.
3

According to the kinetic-molecular theory, what happens to a liquid when it is transferred from one container to another?

A
The volume and the shape stay the same.
B
The volume increases to fill the new container, but the shape stays the same.
C
The volume stays the same, but the shape changes to fit the new container.
D
The volume and the shape change to fill the new container.
4

In the diagram below, particles of the substance are moving from the liquid phase to the gas phase at the same rate as they move from the gas phase to the liquid phase.The gas and liquid are at

Question illustration
A
equilibrium.
B
a high vapor pressure.
C
a low vapor pressure.
D
zero vapor pressure.
5

The diagrams show gases that are stored in two separate but similar containers.If both gases are at the same temperature, which one has the greater pressure?

Question illustration
A
gas 1 because the particles are moving much faster
B
gas 1 because it has fewer particles that are close together
C
gas 2 because it has more particles that are colliding
D
gas 2 because the particles have more space between them
6

Which best characterizes a crystal?

A
a number of high speed particles moving randomly
B
a dense substance that is hard and incompressible
C
a high-energy state of matter made up of a swirling, ionized gas
D
a loose association of particles moving past one another
7

Which statement best compares the melting point of butane (C4H10) with that of octane (C8H18)?

A
The melting points of both substances are identical.
B
The melting point is higher for butane.
C
The melting point is higher for octane.
D
The comparison of melting points cannot be made.
8

Which statement describes a limitation of the kinetic-molecular theory for a gas?

A
The theory assumes that particles do not experience intermolecular forces.
B
The theory states that pressure is inversely proportional to volume.
C
The theory assumes that particles are in random and continuous motion.
D
The theory states that pressure increases with temperature.
9

Which is a postulate of the kinetic-molecular theory?

A
Gas particles have a small volume relative to the spaces between them.
B
Gas particles have a large volume relative to the spaces between them.
C
Gas particles are very small in size and always move slowly.
D
Gas particles are very large in size and always move slowly.
10

Which of the following could form an ionic bond with an anion?

A
Hg22+
B
NO2–
C
SO32–
D
Ar
11

When a strip of magnesium metal is touched to a flame, a bright light and a whitish substance are produced. Why is the burning of magnesium considered a chemical change?

A
because the metal reaches a high temperature
B
because the metal begins to melt
C
because a new substance is formed
D
because the metal is malleable
12

Which describes a step in the process of forming an ionic bond?

A
A metal atom loses electrons and becomes a positive ion.
B
A metal atom gains electrons and becomes a negative ion.
C
A nonmetal atom loses electrons and becomes a negative ion.
D
A nonmetal atom gains electrons and becomes a positive ion.

Did you find these answers helpful?

More from this Course

Quiz
15 verified answers

Unit Test

Quiz
13 verified answers

Unit Test

Quiz
4 verified answers

Unit Test