Question 1

When the prefix centi is used in the metric system,a fundamental unit of measurement is multiplied by what factor?

Accepted Answer

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

Question 2

Which term does not describe a conversion between states of matter?

Accepted Answer

A) condensation 
B) evaporation 
C) freezing 
D) melting 
E) mixing 
A) condensation 
B) evaporation 
C) freezing 
D) melting 
E) mixing

Question 3

What is the total length of two pieces of tubing which measure 4.5 cm and 3.222 cm? Express the answer to the correct number of significant figures.

Accepted Answer

A) 3.722 cm 
B) 4.722 cm 
C) 7.722 cm 
D) 7.7 cm 
E) 8 cm 
A) 3.722 cm 
B) 4.722 cm 
C) 7.722 cm 
D) 7.7 cm 
E) 8 cm

Question 4

Which measurement represents the largest quantity?

Accepted Answer

A) 4730 ng 
B) 4.73 × 10-4 g 
C) 4.73 × 103 μg 
D) 4.73 × 10-6 kg 
E) 47.3 mg 
A) 4730 ng 
B) 4.73 × 10-4 g 
C) 4.73 × 103 μg 
D) 4.73 × 10-6 kg 
E) 47.3 mg

Question 5

The conversion factor used to convert 55.6 km to miles is

Accepted Answer

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

Question 6

What temperature is -10.°C on the Fahrenheit scale?

Accepted Answer

A) 263°F 
B) 26°F 
C) 14°F 
D) -6.0°F 
E) -18°F 
A) 263°F 
B) 26°F 
C) 14°F 
D) -6.0°F 
E) -18°F

Question 7

What is the specific heat of a metal if it takes 48.4 calories to raise the temperature of a 45.0 g sample by 5.0°C?

Accepted Answer

A) 0.186 cal/g °C 
B) 0.215 cal/g °C 
C) 5.34 cal/g °C 
D) 225 cal/g °C 
E) 242 cal/g °C 
A) 0.186 cal/g °C 
B) 0.215 cal/g °C 
C) 5.34 cal/g °C 
D) 225 cal/g °C 
E) 242 cal/g °C

Question 8

The dosage of quinine when a 145-lb adult takes a 200.-mg tablet is ________ μg drug per kg of body weight.

Accepted Answer

A) 1.38 × 106 
B) 1.60 × 103 
C) 3.04 × 103 
D) 4.41 × 105 
E) 15.2 
A) 1.38 × 106 
B) 1.60 × 103 
C) 3.04 × 103 
D) 4.41 × 105 
E) 15.2

Question 9

Why is the number 1.8 (and not some other value)used in the formula for converting between Celsius and Fahrenheit temperatures?

Accepted Answer

This value compensates for the different

Question 10

Which of the following is a pure substance?

Accepted Answer

A) root beer 
B) bleach 
C) eggs 
D) gasoline 
E) neon 
A) root beer 
B) bleach 
C) eggs 
D) gasoline 
E) neon

Question 11

Which of the following measurements has three significant figures?

Accepted Answer

A) 1207 g 
B) 4.250 g 
C) 0.006 g 
D) 0.0250 g 
E) 0.03750 g 
A) 1207 g 
B) 4.250 g 
C) 0.006 g 
D) 0.0250 g 
E) 0.03750 g

Question 12

What is the numerical value of  
?

Accepted Answer

A) 1.2 
B) 1.2 ×   
C) 1.2 ×   
D) 1.2 ×   
E) 1.2 ×   
A) 1.2 
B) 1.2 ×   
C) 1.2 ×   
D) 1.2 ×   
E) 1.2 ×

Question 13

Which of the following is a chemical property?

Accepted Answer

A) melting point 
B) mass 
C) flammability 
D) volume 
E) temperature 
A) melting point 
B) mass 
C) flammability 
D) volume 
E) temperature

Question 14

Which of the following is a chemical property of aspirin?

Accepted Answer

A) It does not decompose when protected from moisture. 
B) It does not readily dissolve in water. 
C) It can be compressed into tablets when mixed with cornstarch. 
D) It melts at 135°C. 
E) It is a white crystalline solid in pure form at room temperature. 
A) It does not decompose when protected from moisture. 
B) It does not readily dissolve in water. 
C) It can be compressed into tablets when mixed with cornstarch. 
D) It melts at 135°C. 
E) It is a white crystalline solid in pure form at room temperature.

Question 15

The measurement most likely to describe the amount of pain reliever in a headache tablet is

Accepted Answer

A) 1.5 kg. 
B) 500 mg. 
C) 1.00 mL. 
D) 325 mg/mL. 
E) 0.25 L. 
A) 1.5 kg. 
B) 500 mg. 
C) 1.00 mL. 
D) 325 mg/mL. 
E) 0.25 L.

Question 16

In an introductory laboratory exercise,a student was asked to measure the volume of soda in a partially filled can in metric units.Which value below is most likely to be correct?

Accepted Answer

A) 1.0 kL 
B) 2.5 L 
C) 325 mL 
D) 550 μL 
E) 6.0 ×  
NL 
A) 1.0 kL 
B) 2.5 L 
C) 325 mL 
D) 550 μL 
E) 6.0 ×  
NL

Question 17

A 2.36  
Sample of an unknown metal weighs 18.5 g.What is the sample's density?

Accepted Answer

A) 7.84 g/   
B) 0.127  /g 
C) 15.75 g/   
D) 0.784 g/   
E) 1.27  /g 
A) 7.84 g/   
B) 0.127  /g 
C) 15.75 g/   
D) 0.784 g/   
E) 1.27  /g

Question 18

Amphetamine,a commonly abused drug,is composed of nine atoms of carbon,13 atoms of hydrogen,and one atom of nitrogen.The chemical formula of amphetamine is written

Accepted Answer

A) C9H13N1. 
B) C9H13. 
C) C9H13N. 
D) C13H93N0. 
E) C9H1N13. 
A) C9H13N1. 
B) C9H13. 
C) C9H13N. 
D) C13H93N0. 
E) C9H1N13.

Question 19

In scientific notation,the number 185,000,000 is

Accepted Answer

A) 185 ×  
. 
B) 1.85 ×  
. 
C) 1.85 ×  
. 
D) 185 ×  
. 
E) 1.85 ×  
. 
A) 185 ×  
. 
B) 1.85 ×  
. 
C) 1.85 ×  
. 
D) 185 ×  
. 
E) 1.85 ×  
.

Question 20

All of the following are examples of matter except

Accepted Answer

A) heat. 
B) air. 
C) water. 
D) salt. 
E) plants. 
A) heat. 
B) air. 
C) water. 
D) salt. 
E) plants.

Exam 1: Matter and Measurements

When the prefix centi is used in the metric system,a fundamental unit of measurement is multiplied by what factor?

Which term does not describe a conversion between states of matter?

What is the total length of two pieces of tubing which measure 4.5 cm and 3.222 cm? Express the answer to the correct number of significant figures.

Which measurement represents the largest quantity?

The conversion factor used to convert 55.6 km to miles is

What temperature is -10.°C on the Fahrenheit scale?

What is the specific heat of a metal if it takes 48.4 calories to raise the temperature of a 45.0 g sample by 5.0°C?

The dosage of quinine when a 145-lb adult takes a 200.-mg tablet is ________ μg drug per kg of body weight.

Why is the number 1.8 (and not some other value)used in the formula for converting between Celsius and Fahrenheit temperatures?

Which of the following is a pure substance?

Which of the following measurements has three significant figures?

What is the numerical value of ?

Which of the following is a chemical property?

Which of the following is a chemical property of aspirin?

The measurement most likely to describe the amount of pain reliever in a headache tablet is

In an introductory laboratory exercise,a student was asked to measure the volume of soda in a partially filled can in metric units.Which value below is most likely to be correct?

A 2.36 Sample of an unknown metal weighs 18.5 g.What is the sample's density?

Amphetamine,a commonly abused drug,is composed of nine atoms of carbon,13 atoms of hydrogen,and one atom of nitrogen.The chemical formula of amphetamine is written

In scientific notation,the number 185,000,000 is

All of the following are examples of matter except

Atoms and the Periodic Table

Ionic Compounds

Molecular Compounds

Classification and Balancing of Chemical Reactions

Chemical Reactions: Mole and Mass Relationships

Chemical Reactions: Energy, rates, and Equilibrium

Gases, liquids, and Solids

Solutions

Acids and Bases

Nuclear Chemistry

Introduction to Organic Chemistry: Alkanes

Alkenes, alkynes, and Aromatic Compounds

Some Compounds With Oxygen, sulfur, or a Halogen

Aldehydes and Ketones

Amines

Carboxylic Acids and Their Derivatives

Amino Acids and Proteins

Enzymes and Vitamins

Carbohydrates

The Generation of Biochemical Energy

Carbohydrate Metabolism

Lipids

Lipid Metabolism

Protein and Amino Acid Metabolism

Nucleic Acids and Protein Synthesis

Genomics

Chemical Messengers: Hormones, neurotransmitters, and Drugs

Body Fluids

Filters