WorksheetsChapter 2/3 Review
Total questions: 25
Worksheet time: 25mins
Name
Class
Date
1.
The ability to dissolve in water and conduct electricity are examples of:
a)
chemical changes
b)
chemical properties
c)
physical properties
d)
chemical bonding
2.
Water is a(n)
a)
element
b)
homogeneous mixture
c)
heterogeneous mixture
d)
compound
3.
New substances form when matter undergoes a...
a)
change in shape
b)
physical change
c)
change in temperature
d)
chemical change
4.
A wet towel dries in the sun by the process of:
a)
boiling
b)
condensation
c)
evaporation
d)
sublimation
5.
Which of the following describes a gas?
a)
The particles do not move.
b)
The particles are locked into place.
c)
The particles are free to move and independent.
d)
The particles slide past one another.
6.
Which state of matter has both definite volume and shape?
a)
Solid
b)
Liquid
c)
Gas
d)
Plasma
7.
As water vapor condenses back into liquid water, the relative motion of the water molecules...
a)
increases.
b)
decreases.
c)
stays the same.
d)
drops to zero.
8.
A gas is at constant temperature. You decrease the volume of the gas and the pressure increases. What are the 2 variables in this lab?
a)
Temperature and time
b)
Time and volume
c)
Volume and pressure
d)
Pressure and temperature
9.
Which of the pictures is a mixture?
a)
X
b)
Y
c)
Z
d)
W
10.
Which of the pictures contains atoms of one type of element?
a)
A
b)
B
c)
C
d)
D
11.
Which of the images are compounds?
a)
X,Y
b)
Y,Z
c)
Z,W
d)
X,W
12.
At what temperature does water melt?
a)
-20
b)
0
c)
100
d)
140
13.
How much total heat is needed to go from a solid to a gas?
a)
About 50 calories
b)
About 225 calories
c)
About 775 calories
d)
More than 800 calories
14.
You have a chart describing substances based on color, density, smell and melting point. What would be a good title for the chart?
a)
Chemical properties
b)
Physical properties
c)
Periodic table
d)
Chemical changes
15.
You have 2 grams of hydrogen added to 16 grams of oxygen. How much total water can you create?
a)
8 grams
b)
14 grams
c)
18 grams
d)
32 grams
16.
Hydrogen + Oxygen -> Water + energy
What type of reaction is this?
What type of reaction is this?
a)
Chemical and exothermic
b)
Physical and exothermic
c)
Chemical and endothermic
d)
Physical and endothermic
17.
Hydrogen + Oxygen -> Water + Energy
The properties of water produced by the following reaction are:
The properties of water produced by the following reaction are:
a)
Different from the properties of hydrogen and oxygen
b)
The same as the properties of hydrogen and oxygen
c)
The same as the properties of hydrogen but not oxygen
d)
The same as the properties of oxygen but not hydrogen.
18.
The fact that matter is neither created nor destroyed is called the:
a)
Law of exothermic change
b)
Law of thermal conservation
c)
Law of endothermic change
d)
Law of conservation of matter
19.
How can you best describe the reactions in the graph?
a)
Endothermic
b)
Exothermic
c)
Physical
d)
None of the above
20.
You see a chart and the volume goes up as the pressure goes down. What gas law is this?
a)
Boyle's Law
b)
Charles's Law
c)
Newton's Law
d)
Einstein's Law
21.
What are the 2 variables on this graph?
a)
Heat and water
b)
Water and Energy
c)
Temperature and time
d)
Temperature and energy
22.
What is happening to the temperature of the water from 2-4 minutes?
a)
It is decreasing
b)
It is increasing
c)
It stays the same
d)
It is constantly going up and down.
23.
What change of state happens at 0 degrees?
a)
Melting
b)
Boiling
c)
Evaporation
d)
Condensation
24.
What change of state happens at 100 degrees?
a)
Melting
b)
Freezing
c)
Boiling/Vaporization
d)
Condensation
25.
Where on the graph does water have the most energy?
a)
Solid
b)
Freezing
c)
Liquid
d)
Gas
100 %
