Question 1

The number with the most significant zeros is ________.

Accepted Answer

A) 0.00002510 
B) 0.02500001 
C) 250000001 
D) 2.501 × 10-7 
E) 2.5100000 
A) 0.00002510 
B) 0.02500001 
C) 250000001 
D) 2.501 × 10-7 
E) 2.5100000

Question 2

1.035 × 10-4 L = ________ mL

Accepted Answer

Question 3

The quantity ________ m is the same as 4 km.

Accepted Answer

A) 4000 
B) 400 
C) 0.004 
D) 0.04 
E) 40 
A) 4000 
B) 400 
C) 0.004 
D) 0.04 
E) 40

Question 4

If an object is accelerating at a rate of 25 m/s2, how long (in seconds)will it take to reach a speed of 550 m/s? (Assume an initial velocity of zero.)

Accepted Answer

A) 22 
B) 1.4 × 104 
C) 0.045 
D) 1.2 × 104 
E) 2.3 × 102 
A) 22 
B) 1.4 × 104 
C) 0.045 
D) 1.2 × 104 
E) 2.3 × 102

Question 5

What is the physical state in which matter has no specific shape but does have a specific volume?

Accepted Answer

A) gas 
B) solid 
C) liquid 
D) salts 
E) ice 
A) gas 
B) solid 
C) liquid 
D) salts 
E) ice

Question 6

A cube of an unknown metal measures 0.250 cm on one side. The mass of the cube is 0.095 g. Which of the following is most likely the unknown metal?

Accepted Answer

A) zirconium 
B) rhodium 
C) vanadium 
D) copper 
E) niobium 
A) zirconium 
B) rhodium 
C) vanadium 
D) copper 
E) niobium

Question 7

Round the number 0.00637 to two significant figures.

Accepted Answer

A) 0.0064 
B) 0.006 
C) 0.00637 
D) 0.0 
E) 0.0063700 
A) 0.0064 
B) 0.006 
C) 0.00637 
D) 0.0 
E) 0.0063700

Question 8

Momentum is defined as the product of mass and velocity. The SI unit for momentum is ________.

Accepted Answer

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

Question 9

The density of lead is 11.4 g/cm3. The mass of a lead ball with a radius of 0.50 mm is ________ g. (π = 3.1416; Vsphere = 4πr3/3)

Accepted Answer

A) 6.0 
B) 4.6 × 10-2 
C) 4.6 × 10-5 
D) 6.0 × 10-3 
E) 4.6 
A) 6.0 
B) 4.6 × 10-2 
C) 4.6 × 10-5 
D) 6.0 × 10-3 
E) 4.6

Question 10

The width, length, and height of a large, custom-made shipping crate are 1.12 m, 1.25 m, and 0.83 m, respectively. The volume of the box using the correct number of significant figures is ________ m3.

Accepted Answer

A) 1.16200 
B) 1.2 
C) 1.16 
D) 1.162 
E) 1.1620 
A) 1.16200 
B) 1.2 
C) 1.16 
D) 1.162 
E) 1.1620

Question 11

The density of silver is 10.5 g/ cm3. A piece of silver that occupies a volume of 9.60 cm3 would have a mass of ________ g.

Accepted Answer

A) 101 
B) .445 
C) 2.25 
D) 112 
E) 23.6 
A) 101 
B) .445 
C) 2.25 
D) 112 
E) 23.6

Question 12

The correct result (indicating the proper number of significant figures)of the following addition is ________. 12
1.2
0.12
+ 0.012

Accepted Answer

A) 13 
B) 13.3 
C) 13.33 
D) 13.332 
E) none of the above 
A) 13 
B) 13.3 
C) 13.33 
D) 13.332 
E) none of the above

Question 13

The initial or tentative explanation of an observation is called a(n)________.

Accepted Answer

A) law 
B) theory 
C) hypothesis 
D) experiment 
E) test 
A) law 
B) theory 
C) hypothesis 
D) experiment 
E) test

Question 14

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 15

If matter is uniform throughout and cannot be separated into other substances by physical processes, but can be decomposed into other substances by chemical processes, it is called a(n)________.

Accepted Answer

A) heterogeneous mixture 
B) element 
C) homogeneous mixture 
D) compound 
E) mixture of elements 
A) heterogeneous mixture 
B) element 
C) homogeneous mixture 
D) compound 
E) mixture of elements

Question 16

The freezing point of water at 1 atm pressure is ________.

Accepted Answer

A) 0 °F 
B) 0 K 
C) 0 °C 
D) -273 °C 
E) -32 °F 
A) 0 °F 
B) 0 K 
C) 0 °C 
D) -273 °C 
E) -32 °F

Question 17

What decimal power does the abbreviation nano represent?

Accepted Answer

A) 1 × 106 
B) 1 × 109 
C) 1 × 10-1 
D) 1 × 10-9 
E) 1 × 10-12 
A) 1 × 106 
B) 1 × 109 
C) 1 × 10-1 
D) 1 × 10-9 
E) 1 × 10-12

Question 18

Mass and volume are often referred to as ________ properties of substances.

Accepted Answer

The answer of Mass and volume are often referred to...

Question 19

An object measuring 0.4500 kilograms will have a mass of ________ grams.

Accepted Answer

A) 450.0 
B) 0.0004500 
C) 45.00 
D) 4.500 
E) 2222 
A) 450.0 
B) 0.0004500 
C) 45.00 
D) 4.500 
E) 2222

Question 20

Which of the following has the same number of significant figures as the number 0.0050?

Accepted Answer

A) 0.9 
B) 4.0 
C) 1.00 
D) 601 
E) 99.000 
A) 0.9 
B) 4.0 
C) 1.00 
D) 601 
E) 99.000

Exam 1: Introduction: Matter and Measurement

The number with the most significant zeros is ________.

1.035 × 10-4 L = ________ mL

The quantity ________ m is the same as 4 km.

If an object is accelerating at a rate of 25 m/s2, how long (in seconds)will it take to reach a speed of 550 m/s? (Assume an initial velocity of zero.)

What is the physical state in which matter has no specific shape but does have a specific volume?

A cube of an unknown metal measures 0.250 cm on one side. The mass of the cube is 0.095 g. Which of the following is most likely the unknown metal?

Round the number 0.00637 to two significant figures.

Momentum is defined as the product of mass and velocity. The SI unit for momentum is ________.

The density of lead is 11.4 g/cm3. The mass of a lead ball with a radius of 0.50 mm is ________ g. (π = 3.1416; Vsphere = 4πr3/3)

The width, length, and height of a large, custom-made shipping crate are 1.12 m, 1.25 m, and 0.83 m, respectively. The volume of the box using the correct number of significant figures is ________ m3.

The density of silver is 10.5 g/ cm3. A piece of silver that occupies a volume of 9.60 cm3 would have a mass of ________ g.

The correct result (indicating the proper number of significant figures)of the following addition is ________. 12 1.2 0.12 + 0.012

The initial or tentative explanation of an observation is called a(n)________.

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

If matter is uniform throughout and cannot be separated into other substances by physical processes, but can be decomposed into other substances by chemical processes, it is called a(n)________.

The freezing point of water at 1 atm pressure is ________.

What decimal power does the abbreviation nano represent?

Mass and volume are often referred to as ________ properties of substances.

An object measuring 0.4500 kilograms will have a mass of ________ grams.

Which of the following has the same number of significant figures as the number 0.0050?

Atoms, Molecules, and Ions

Stoichiometry: Calculations With Chemical Formulas and Equations

Aqueous Reactions and Solution Stoichiometry

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

1.035 × 10^-4 L = ________ mL

If an object is accelerating at a rate of 25 m/s², how long (in seconds)will it take to reach a speed of 550 m/s? (Assume an initial velocity of zero.)

The density of lead is 11.4 g/cm³. The mass of a lead ball with a radius of 0.50 mm is ________ g. (π = 3.1416; V_sphere = 4πr³/3)

The width, length, and height of a large, custom-made shipping crate are 1.12 m, 1.25 m, and 0.83 m, respectively. The volume of the box using the correct number of significant figures is ________ m³.

The density of silver is 10.5 g/ cm³. A piece of silver that occupies a volume of 9.60 cm³ would have a mass of ________ g.