Multiple Choice Identify the
letter of the choice that best completes the statement or answers the question.


1.

A 35g sample of potassium completely reacts with chlorine to form 67 g of
potassium chloride. How many grams of chlorine must have reacted?


2.

The correct answer for the addition shown below is: 3.914 cm + 243.10 cm + 12.0046 cm =
A)  259.02 cm  B)  259.019 cm  C)  259.0
cm  D)  259.0186 cm 


3.

37.4 cm x 2.2 cm equals
A)  82 cm^{2}  B)  82.28 cm^{2}  C)  82.3
cm^{2}  D)  82.2 cm^{2} 


4.

What is the mass of 225 mL of a liquid that has a density of 0.880
g/mL?
A)  0.256 g  B)  0.198 g  C)  198
g  D)  0.0039 g 


5.

How many significant figures does the measurement 0.0048 cm contain?


6.

42.0 °C is equivalent to
A)  5.55 °F  B)  273 K  C)  108
°F  D)  53.3 °F 


7.

If iodine melts at 114 ºC and boils at 184 ºC, what is its physical
state at 130 ºC?
A)  gas  B)  solid  C)  liquid  D)  cannot be
determined 


8.

The mass of a block is 9.43 g and its density is 2.35 g/cm^{3}.
The volume of the block is
A)  2.49 cm^{3}  B)  22.2 cm^{3}  C)  0.249
cm^{3}  D)  4.01 cm^{3} 


9.

An automobile travels 97.2 km on 7.88 L of gasoline. What is the gas
mileage for the automobile in miles per gallon?
A)  2.02 mi/gal  B)  0.034 mi/gal  C)  29.0
mi/gal  D)  7.67 mi/gal 


10.

What is the edge length of a 155g iron cube? (Density of iron is 7.86
g/cm^{3})
A)  2.70 cm  B)  19.7 cm  C)  1218
cm  D)  0.0197 cm 


11.

When 20.0 g of mercury is heated from 10.0 °C to 20.0 °C, 27.6 J of
energy are absorbed. What is the specific heat of mercury?
A)  0.726 J/g°C  B)  552 J/g°C  C)  2.76
J/g°C  D)  0.138 J/g°C 


12.

Which of the following is NOT a characteristic of solutions?
A)  a heterogeneous mixture  B)  a homogeneous mixture  C)  variable
composition  D)  contains 2 or more substances 


13.

A theory is
A)  a hypothesis that has been tested and validated over a long period of
time  B)  a law that is yet to be tested and validated  C)  a law that has been
validated by several international scientific organizations  D)  a hypothesis that is
yet to be tested and validated 


14.

Which of the following is a physical change?
A)  a piece of sulfur is burned  B)  a nail rusts  C)  a firecracker
explodes  D)  a rubber band is stretched 
