Question 1

In which one of the following numbers are none of the zeros significant?

Accepted Answer

A) 10.0 
B) 103 
C) 161.00 
D) 0.00050 
E) 0.009 
A) 10.0 
B) 103 
C) 161.00 
D) 0.00050 
E) 0.009

Question 2

Which of the following is (are)the lowest temperature?

Accepted Answer

A) The freezing point of water 
B) 5 °C 
C) 30 °F 
D) 280 K 
E) A and D 
A) The freezing point of water 
B) 5 °C 
C) 30 °F 
D) 280 K 
E) A and D

Question 3

Of the following,only ________ is a chemical reaction.

Accepted Answer

A) melting of lead 
B) dissolving sugar in water 
C) tarnishing of silver 
D) crushing of stone 
E) dropping a penny into a glass of water 
A) melting of lead 
B) dissolving sugar in water 
C) tarnishing of silver 
D) crushing of stone 
E) dropping a penny into a glass of water

Question 4

The prefix giga is represented by the following notation ________.

Accepted Answer

A) 1 × 10-1 
B) 1 × 10-3 
C) 1 × 10-9 
D) 1 × 109 
E) 1 × 103 
A) 1 × 10-1 
B) 1 × 10-3 
C) 1 × 10-9 
D) 1 × 109 
E) 1 × 103

Question 5

A combination of sand,salt,and water is an example of a ________.

Accepted Answer

A) homogeneous mixture 
B) heterogeneous mixture 
C) compound 
D) pure substance 
E) solid 
A) homogeneous mixture 
B) heterogeneous mixture 
C) compound 
D) pure substance 
E) solid

Question 6

The unit of force in the English measurement system is   .The SI unit of force is the Newton,which is ________ in base SI units.

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 7

How many liters of wine can be held in a wine barrel whose capacity is 30.0 gal?

Accepted Answer

A) 1.26 × 10-4 
B) 0.126 
C) 114 
D) 7.93 × 103 
E) 7.93 
A) 1.26 × 10-4 
B) 0.126 
C) 114 
D) 7.93 × 103 
E) 7.93

Question 8

There should be ________ significant figures in the answer to the following computation.

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
E) 5 
A) 1 
B) 2 
C) 3 
D) 4 
E) 5

Question 9

Which one of the following elements is identified by the chemical symbol,Al?

Accepted Answer

A) tin 
B) aluminum 
C) mercury 
D) copper 
E) lead 
A) tin 
B) aluminum 
C) mercury 
D) copper 
E) lead

Question 10

A temperature of ________ K is the same as 63 °F.

Accepted Answer

A) 17 
B) 276 
C) 290 
D) 29 
E) 336 
A) 17 
B) 276 
C) 290 
D) 29 
E) 336

Question 11

The symbol for the element sodium is ________.

Accepted Answer

A) Me 
B) Hg 
C) Sn 
D) Na 
E) Pb 
A) Me 
B) Hg 
C) Sn 
D) Na 
E) Pb

Question 12

The correct answer (reported to the proper number of significant figures)to the following is ________.
(1501-1496)× (9.18 × 3.68)= ________

Accepted Answer

The answer of The correct answer (reported to the proper...

Question 13

A temperature of 55.0 °F is the same as ________ °C.

Accepted Answer

A) 12.8 
B) 131.0 
C) 32.0 
D) 328.2 
E) -218.2 
A) 12.8 
B) 131.0 
C) 32.0 
D) 328.2 
E) -218.2

Question 14

There are 6 significant figures in the number 0.003702.

Accepted Answer

A) True 
 B)False

Question 15

How many significant figures are in the measurement 5000 g?

Accepted Answer

A) 4 
B) 2 
C) 3 
D) 1 
E) 5 
A) 4 
B) 2 
C) 3 
D) 1 
E) 5

Question 16

If matter is uniform throughout and cannot be separated into other substances by physical means,it is ________.

Accepted Answer

A) a compound 
B) either an element or a compound 
C) a homogeneous mixture 
D) a heterogeneous mixture 
E) an element 
A) a compound 
B) either an element or a compound 
C) a homogeneous mixture 
D) a heterogeneous mixture 
E) an element

Question 17

Express the temperature,275.18 K,in degrees Celsius.

Accepted Answer

A) 548.33 °C 
B) 274.17 °C 
C) 2.03 °C 
D) 120.88 °C 
E) 22.78 °C 
A) 548.33 °C 
B) 274.17 °C 
C) 2.03 °C 
D) 120.88 °C 
E) 22.78 °C

Question 18

A separation process that depends on differing abilities of substances to form gases is called ________.

Accepted Answer

A) filtration 
B) solvation 
C) distillation 
D) chromatography 
E) All of the above are correct. 
A) filtration 
B) solvation 
C) distillation 
D) chromatography 
E) All of the above are correct.

Question 19

The element hydrogen has the symbol ________.

Accepted Answer

A) H 
B) He 
C) K 
D) B 
E) Ar 
A) H 
B) He 
C) K 
D) B 
E) Ar

Question 20

Of the following,________ is the largest mass.

Accepted Answer

A) 25 kg 
B) 2.5 × 10-2 mg 
C) 2.5 × 1015 pg 
D) 2.5 × 109 fg 
E) 2.5 × 1010 ng 
A) 25 kg 
B) 2.5 × 10-2 mg 
C) 2.5 × 1015 pg 
D) 2.5 × 109 fg 
E) 2.5 × 1010 ng

Exam 1: Introduction: Matter, energy, and Measurement

In which one of the following numbers are none of the zeros significant?

Which of the following is (are)the lowest temperature?

Of the following,only ________ is a chemical reaction.

The prefix giga is represented by the following notation ________.

A combination of sand,salt,and water is an example of a ________.

The unit of force in the English measurement system is .The SI unit of force is the Newton,which is ________ in base SI units.

How many liters of wine can be held in a wine barrel whose capacity is 30.0 gal?

There should be ________ significant figures in the answer to the following computation.

Which one of the following elements is identified by the chemical symbol,Al?

A temperature of ________ K is the same as 63 °F.

The symbol for the element sodium is ________.

The correct answer (reported to the proper number of significant figures)to the following is ________. (1501-1496)× (9.18 × 3.68)= ________

A temperature of 55.0 °F is the same as ________ °C.

There are 6 significant figures in the number 0.003702.

How many significant figures are in the measurement 5000 g?

If matter is uniform throughout and cannot be separated into other substances by physical means,it is ________.

Express the temperature,275.18 K,in degrees Celsius.

A separation process that depends on differing abilities of substances to form gases is called ________.

The element hydrogen has the symbol ________.

Of the following,________ is the largest mass.

Atoms, molecules, and Ions

Chemical Reactions and Reaction Stoichiometry

Reactions in Aqueous Solution

Thermochemistry

Electronic Structure of Atoms

Periodic Properties of the Elements

Basic Concepts of Chemical Bonding

Molecular Geometry and Bonding Theories

Gases

Liquids and Intermolecular Forces

Solids and Modern Materials

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria

Additional Aspects of Aqueous Equilibria

Chemistry of the Environment

Chemical Thermodynamics

Electrochemistry

Nuclear Chemistry

Chemistry of the Nonmetals

Transition Metals and Coordination Chemistry

The Chemistry of Life: Organic and Biological Chemistry

Filters

The correct answer (reported to the proper number of significant figures)to the following is . (1501-1496)× (9.18 × 3.68)=