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SLG, Phase changes, heating curves

Total questions: 58

Worksheet time: 41mins

Name
Class
Date
1.

This substance consists of two or more elements physically combined together

a)

Element

b)

Compound

c)

Mixture

d)

Plasma

2.

This substance consists of two or more elements chemically bonded together

a)

Element

b)

Compound

c)

Mixture

d)

Plasma

3.

This substance cannot be broken down into simpler substances by physical or chemical means

a)

Element

b)

Compound

c)

Mixture

d)

Plasma

4.

A pure substance that is mater which

a)

can be separated by physical means

b)

has a composition that can change

c)

has a composition that has varying proportions

d)

has a composition that is fixed with constant proportions

5.

Which in the following picture is a Compound

a)

A

b)

B

c)

C

d)

None

6.

Which in the following picture is a Mixture

a)

A

b)

B

c)

C

d)

None

7.

Which in the following picture is a Element

a)

A

b)

B

c)

C

d)

None

8.

Which would best describe Gold (Au)?

a)

Compound

b)

Element

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

9.

Which would best describe table Salt (NaCl)?

a)

Compound

b)

Element

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

10.

Which would best describe ocean water?

a)

Compound

b)

Element

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

11.

Which would best describe a bag of jelly belly jelly beans?

a)

Compound

b)

Element

c)

Homogeneous Mixture

d)

Heterogeneous Mixture

12.

Which of the following would be considered matter

a)

Light

b)

Heat

c)

Air

d)

Sound

13.

When mater is cooled (decrease in temperature), its kinetic energy

a)

Increases

b)

Decreases

c)

Remains the same

d)

Varies depending on the time of day

14.

Which phase of mater will particles of a substance be moving the slowest

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

15.

A state of high energy gas that has shed their own electrons

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

16.

A state that does not have a constant shape but does have a constant volume

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

17.

In which region(s) does temperature remain constant?

a)

Region 1, 3, & 5

b)

Region 2 & 4

c)

Region 1 only

d)

Region 1 & 2

18.
In which region(s) does temperature increase?
a)
Region 1, 3, & 5
b)
Region 2 & 4
c)
Region 1 only
d)
Region 1 & 2
19.
This curve indicates what about the heat energy?
a)
heat energy is being added or absorbed
b)
heat energy is being removed
20.
In which region(s) of the graph does a phase change occur?
a)
Region 1, 3, & 5
b)
Region 2 & 4
c)
Region 1 only
d)
Region 1 & 2
21.
In which region(s) of the graph would the substance only be in one phase?
a)
Region 1, 3, & 5
b)
Region 2 & 4
c)
Region 1 only
d)
Region 1 & 2
22.
In which region(s) of the graph would the substance be a solid only?
a)
Region 1
b)
Region 2
c)
Region 3
d)
Region 4
23.
In which region(s) of the graph would the substance be a solid and a liquid?
a)
Region 1
b)
Region 2
c)
Region 3
d)
Region 4
24.
In which region(s) of the graph would the substance be a liquid only?
a)
Region 1
b)
Region 2
c)
Region 3
d)
Region 4
25.
In which region(s) of the graph would the substance be a liquid and a gas?
a)
Region 2
b)
Region 3
c)
Region 4
d)
Region 5
26.
In which region(s) of the graph would the substance be a gas only?
a)
Region 2
b)
Region 3
c)
Region 4
d)
Region 5
27.
In which region(s) of the graph does boiling take place?
a)
Region 2
b)
Region 3
c)
Region 4
d)
Region 5
28.
In which region(s) of the graph does melting take place?
a)
Region 2
b)
Region 3
c)
Region 4
d)
Region 5
29.
In which region of the graph would be used to find the boiling point of the substance?
a)
Region 2
b)
Region 3
c)
Region 4
d)
Region 5
30.

The graph represents the heating of water in a pot. At 150 seconds, the water has just reached a boil. If the heat is left on, what will happen to the temperature and volume of water in the pot? (All temperatures in °C.)

a)

The temperature will rise, and the water volume will decrease.

b)

The temperature will rise, and the water volume will remain constant.

c)

The temperature will remain constant, and the water volume will decrease.

d)

The temperature will remain constant, and the water volume will remain constant.

31.

Which of the graphs below illustrates water boiling in Denver, Colorado? (Altitude 1,600 meters.)

a)

Graph A

b)

Graph B

c)

Graph C

d)

Graph D

32.
At higher temperatures
a)
particles in an object have less energy
b)
particles in an object move faster
c)
a gas contracts
33.
A gas
a)
has a definite shape but no definite volume
b)
has a definite volume but no definite shape
c)
has fast-moving particles
34.
What state of matter is X?
a)
solid 
b)
liquid
c)
gas
d)
supercritical fluid
35.
What state of matter is Y?
a)
solid 
b)
liquid
c)
gas
d)
supercritical fluid
36.
What is point B?
a)
triple point
b)
critical point
c)
equilibrium point
d)
normal melting point
37.
What change occurs from C to D?
a)
condensation
b)
vaporization
c)
melting
d)
sublimation
38.
What change occurs from E to C?
a)
sublimation
b)
freezing
c)
melting
d)
boiling
39.
What is the normal boiling point of this substance?
a)
150 °C
b)
100 °C
c)
-50 °C
d)
0 °C
40.
At 10 atm, dry ice is heated from -100 °C to 30 °C.  What changes occur?
a)
freezing, then condensation
b)
melting only
c)
sublimation only
d)
melting, then boiling
41.
Which statement is true for carbon dioxide at -60 °C?
a)
All three phases are possible.
b)
It can exist as a solid or a gas, depending on pressure.
c)
It is a solid.
d)
With enough pressure it can be melted.
42.
What would happen to the liquid substance if the pressure were decreased until a phase change occurred? It would undergo...
a)
melting
b)
vaporization
c)
condensation
d)
sublimation
43.
Water exists as a _____________ at 700 mmHg and 50 °C.
a)
solid
b)
liquid
c)
gas
d)
supercritical fluid
44.

Critical Thinking! If gas particles in a tire are moving slowly, your tire pressure will drop because the gas particles are not pressing against the walls of the tire. What temperature change do you think would cause this pressure drop?

a)

The temperature will have become colder

b)

The temperature will have become hotter

c)

Temperature and pressure have no relation

45.

In a pressure cooker, a lid is screwed tightly onto a pot so that the air pressure in the pot is increased. What effect, if any, will this have on the boiling point of water in the pot?

a)

The boiling point will be raised.

b)

The boiling point will be lowered.

c)

The boiling point will be unaffected.

d)

none of these

46.
Are there molecules moving in a solid brick?
a)
yes
b)
no
c)
maybe
d)
not sure
47.

Phase change going from Liquid to Solid...

a)

Melting

b)

Freezing

c)

Condensation

d)

Sublimation

48.
The phase change from water vapor to liquid water is known as...
a)
evaporation
b)
precipitation
c)
condensation
d)
sublimation
49.

Phase change going from a Liquid to a Gas...

a)

Vaporization

b)

Deposition

c)

Condensation

d)

Melting

50.

Phase change going from a Solid to a Gas...

a)

Deposition

b)

Sublimation

c)

Condensation

d)

Recombination

51.

What state of matter is pictured?

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

52.

Phase change going from a Gas to a Solid...

a)

Deposition

b)

Sublimation

c)

Condensation

d)

Vaporization

53.
Which state of matter has the highest kinetic energy (atoms move the fastest)?
a)
solid
b)
liquid 
c)
gas
54.
Which state of matter has the lowest kinetic energy (atoms move the slowest)?
a)
solid 
b)
liquid
c)
gas
55.

According the KMT, the particles are in

a)

different states

b)

organized patterns

c)

constant motion

d)

various containers

56.

Which of the following correctly describes a phase change from liquid to gas?

a)

energy absorbed, density increases

b)

energy absorbed, density decreases

c)

energy released, density increases

d)

energy released, density decreases

57.

A sample of water is brought to a boil. Inside a bubble are (is)

a)

molecules of hydrogen gas and oxygen gas

b)

molecules of water

c)

molecules of air

d)

just empty space

58.

Which is a true statement describing phase changes?

a)

energy is absorbed when a liquid changes to a solid.

b)

Energy is released when a solid changes to a liquid

c)

Energy is absorbed when a gas changes to a liquid

d)

Energy is absorbed when a liquid changes to a gas