Question 1

How many litres of air are in a room that measures  
And has an 8.00 ft ceiling?

Accepted Answer

A) 3.26 ×   
B) 121 
C) 35.1 
D) 3.51 ×   
E) 9.75 × 105 
A) 3.26 ×   
B) 121 
C) 35.1 
D) 3.51 ×   
E) 9.75 × 105 A

Question 2

What is the answer to the correct number of significant figures of the following calculation?

Accepted Answer

A) 2.3 
B) 2.3001 
C) 2.300 
D) 2.30004 
E) 2.30011 
A) 2.3 
B) 2.3001 
C) 2.300 
D) 2.30004 
E) 2.30011 B

Question 3

Which of the following is a chemical change?

Accepted Answer

A) the freezing of water to form ice 
B) hammering zinc into a thin film 
C) crushing of lump of sulfur into yellow powder 
D) the boiling of water to form steam 
E) the reaction of chlorine gas and sodium to form salt 
A) the freezing of water to form ice 
B) hammering zinc into a thin film 
C) crushing of lump of sulfur into yellow powder 
D) the boiling of water to form steam 
E) the reaction of chlorine gas and sodium to form salt E

Question 4

The term substance should be used for:

Accepted Answer

A) chemical elements 
B) compounds 
C) both chemical elements and compounds 
D) chemical elements,compounds,and mixtures 
E) any mixture 
A) chemical elements 
B) compounds 
C) both chemical elements and compounds 
D) chemical elements,compounds,and mixtures 
E) any mixture

Question 5

At what temperature will the numerical values of the Celsius and Fahrenheit scales be the same?

Accepted Answer

A) 0 ° 
B) -40 ° 
C) 40 ° 
D) -273 ° 
E) 80 ° 
A) 0 ° 
B) -40 ° 
C) 40 ° 
D) -273 ° 
E) 80 °

Question 6

Choose the INCORRECT statement.

Accepted Answer

A) A natural law is a generalization of natural phenomena. 
B) A hypothesis is a conclusion that must follow logically from observations of nature. 
C) A theory is a model of nature that can be used to describe natural phenomena. 
D) An experiment is a test of conclusions about natural law. 
E) The scientific method is the combination of observations,experimentation,and the formulation of laws,hypothesis,and theories. 
A) A natural law is a generalization of natural phenomena. 
B) A hypothesis is a conclusion that must follow logically from observations of nature. 
C) A theory is a model of nature that can be used to describe natural phenomena. 
D) An experiment is a test of conclusions about natural law. 
E) The scientific method is the combination of observations,experimentation,and the formulation of laws,hypothesis,and theories.

Question 7

An elephant's bathtub is 8.0 feet long,2.5 yards wide,and 70 inches deep.What is the capacity of the elephant's bathtub in U.S.quarts?

Accepted Answer

A) 9.3 × 103 qt 
B) 1.1 × 104 qt 
C) 3.4 × 104 qt 
D) 34 qt 
E) 2.2 × 104 qt 
A) 9.3 × 103 qt 
B) 1.1 × 104 qt 
C) 3.4 × 104 qt 
D) 34 qt 
E) 2.2 × 104 qt

Question 8

An extensive property is:

Accepted Answer

A) dependent on the quantity of matter observed 
B) difficult to measure 
C) independent of the quantity of matter observed 
D) is a unique value regardless of the measurement conditions 
E) always strongly dependent on the external conditions 
A) dependent on the quantity of matter observed 
B) difficult to measure 
C) independent of the quantity of matter observed 
D) is a unique value regardless of the measurement conditions 
E) always strongly dependent on the external conditions

Question 9

The following measurements were made by a group of students using the same balance and a 25.00 gram weight.
 
The data would be considered:
I.accurate and precise
II.accurate but not precise
III.precise but not accurate
IV.neither precise nor accurate
V.evidence of a systematic error
VI.evidence of large random errors

Accepted Answer

A) I only 
B) II and VI 
C) III and V 
D) IV and VI 
E) IV,V,VI 
A) I only 
B) II and VI 
C) III and V 
D) IV and VI 
E) IV,V,VI

Question 10

Determine the number of cm2 in one in2.

Accepted Answer

A) 64.5 cm2 
B) 6.45 cm2 
C) 100 cm2 
D) 8.95 cm2 
E) 39.7 cm2 
A) 64.5 cm2 
B) 6.45 cm2 
C) 100 cm2 
D) 8.95 cm2 
E) 39.7 cm2

Question 11

From ammonia gas,one can obtain two different gases,each of which is a pure substance.Using only this information,it can be said with certainty that:

Accepted Answer

A) one of the products is an element 
B) neither of the products can be an element 
C) ammonia cannot be an element 
D) both products are elements 
E) gases do not produce solids 
A) one of the products is an element 
B) neither of the products can be an element 
C) ammonia cannot be an element 
D) both products are elements 
E) gases do not produce solids

Question 12

Sulfur dioxide gas is:

Accepted Answer

A) a homogeneous mixture 
B) a compound 
C) an element 
D) a heterogeneous mixture 
E) a solid at room temperature 
A) a homogeneous mixture 
B) a compound 
C) an element 
D) a heterogeneous mixture 
E) a solid at room temperature

Question 13

One inch is equal to:

Accepted Answer

A) 2.54 cm 
B) 2.54 m 
C) 1/(2.54)cm 
D) 1.09 m 
E) 100 cm 
A) 2.54 cm 
B) 2.54 m 
C) 1/(2.54)cm 
D) 1.09 m 
E) 100 cm

Question 14

The temperature in the core of the warp drive of the starship Enterprise is supposedly 3 million (3.00 × 106)degrees Celsius.What is this in degrees Fahrenheit?

Accepted Answer

A) 5.40 × 106 °F 
B) 2.99 × 106 °F 
C) 1.67 × 106 °F 
D) 3.27 × 106 °F 
E) 8.13 × 106 °F 
A) 5.40 × 106 °F 
B) 2.99 × 106 °F 
C) 1.67 × 106 °F 
D) 3.27 × 106 °F 
E) 8.13 × 106 °F

Question 15

The definition of pH is pH = -log[H3O+],where [H3O+] is the hydronium ion concentration.
If [H3O+] = 1.2 × 10-5,the pH,expressed to the correct number of significant figures,is:

Accepted Answer

A) 4.92 
B) 4.9 
C) 5.08 
D) 5.1 
A) 4.92 
B) 4.9 
C) 5.08 
D) 5.1

Question 16

The SI unit for mass is:

Accepted Answer

A) kilogram 
B) gram 
C) pound 
D) ounce 
E) newton 
A) kilogram 
B) gram 
C) pound 
D) ounce 
E) newton

Question 17

It takes light one second to travel 2.998 × 108 m.How many kilometers does light travel in a day?

Accepted Answer

A) 1.086 × 109 km 
B) 2.590 × 1010 km 
C) 7.195 × 109 km 
D) 4.317 × 108 km 
E) 1.086 × 108 km 
A) 1.086 × 109 km 
B) 2.590 × 1010 km 
C) 7.195 × 109 km 
D) 4.317 × 108 km 
E) 1.086 × 108 km

Question 18

Which of the following defines or expresses the concept of accuracy?

Accepted Answer

A) the closest value to the expected answer 
B) deviation of the average 
C) average of the data 
D) reproducibility of a measurement 
E) difference between the accepted answer and the average value of the data 
A) the closest value to the expected answer 
B) deviation of the average 
C) average of the data 
D) reproducibility of a measurement 
E) difference between the accepted answer and the average value of the data

Question 19

A jewelry alloy has a density of 12.412 g/mL and is 75.0% gold by weight.If 522 g of gold are available,what volume of this alloy can be produced?

Accepted Answer

A) 8.64 × 103 mL 
B) 31.5 mL 
C) 4.86 × 103 mL 
D) 335 mL 
E) 56.1 mL 
A) 8.64 × 103 mL 
B) 31.5 mL 
C) 4.86 × 103 mL 
D) 335 mL 
E) 56.1 mL

Question 20

A piece of metal ore weighs 8.25 g.When a student places it into a graduated cylinder containing water,the liquid level rises from 21.25 mL to 26.47 mL.What is the density of the ore?

Accepted Answer

A) 0.312 g mL-1 
B) 0.633 g mL-1 
C) 1.58 g mL-1 
D) 3.21 g mL-1 
A) 0.312 g mL-1 
B) 0.633 g mL-1 
C) 1.58 g mL-1 
D) 3.21 g mL-1

Exam 1: Matter: Its Properties and Measurement

How many litres of air are in a room that measures And has an 8.00 ft ceiling?

What is the answer to the correct number of significant figures of the following calculation?

Which of the following is a chemical change?

The term substance should be used for:

At what temperature will the numerical values of the Celsius and Fahrenheit scales be the same?

Choose the INCORRECT statement.

An elephant's bathtub is 8.0 feet long,2.5 yards wide,and 70 inches deep.What is the capacity of the elephant's bathtub in U.S.quarts?

An extensive property is:

Determine the number of cm2 in one in2.

From ammonia gas,one can obtain two different gases,each of which is a pure substance.Using only this information,it can be said with certainty that:

Sulfur dioxide gas is:

One inch is equal to:

The temperature in the core of the warp drive of the starship Enterprise is supposedly 3 million (3.00 × 106)degrees Celsius.What is this in degrees Fahrenheit?

The definition of pH is pH = -log[H3O+],where [H3O+] is the hydronium ion concentration. If [H3O+] = 1.2 × 10-5,the pH,expressed to the correct number of significant figures,is:

The SI unit for mass is:

It takes light one second to travel 2.998 × 108 m.How many kilometers does light travel in a day?

Which of the following defines or expresses the concept of accuracy?

A jewelry alloy has a density of 12.412 g/mL and is 75.0% gold by weight.If 522 g of gold are available,what volume of this alloy can be produced?

A piece of metal ore weighs 8.25 g.When a student places it into a graduated cylinder containing water,the liquid level rises from 21.25 mL to 26.47 mL.What is the density of the ore?

Atoms and the Atomic Theory

Chemical Compounds

Chemical Reactions

Introduction to Reactions in Aqueous Solutions

Gases

Thermochemistry

Electrons in Atoms

The Periodic Table and Some Atomic Properties

Chemical Bonding I: Basic Concepts

Chemical Bonding Ii: Valence Bond and Molecular Orbital Theories

Intermolecular Forces: Liquids and Solids

Spontaneous Change: Entropy and Gibbs Energy

Solutions and Their Physical Properties

Principles of Chemical Equilibrium

Acids and Bases

Additional Aspects of Acidbase Equilibria

Solubility and Complex-Ion Equilibria

Electrochemistry

Chemical Kinetics

Chemistry of the Main-Group Elements I: Groups 1,2,13,and 14

Chemistry of the Main-Group Elements Ii: Groups 18,17,16,15,and Hydrogen

The Transition Elements

Complex Ions and Coordination Compounds

Nuclear Chemistry

Structures of Organic Compounds

Reactions of Organic Compounds

Chemistry of the Living State

Filters

Determine the number of cm² in one in².

The temperature in the core of the warp drive of the starship Enterprise is supposedly 3 million (3.00 × 10⁶)degrees Celsius.What is this in degrees Fahrenheit?

The definition of pH is pH = -log[H₃O⁺],where [H₃O⁺] is the hydronium ion concentration. If [H₃O⁺] = 1.2 × 10^-5,the pH,expressed to the correct number of significant figures,is:

It takes light one second to travel 2.998 × 10⁸ m.How many kilometers does light travel in a day?