Question 1

What does the prefix "centi-" mean?

Accepted Answer

A) 10-1 
B) 10-2 
C) 10-3 
D) 102 
E) 103 
A) 10-1 
B) 10-2 
C) 10-3 
D) 102 
E) 103

Question 2

Which of the following is NOT a physical property of matter?

Accepted Answer

A) odor 
B) compressibility 
C) flash point 
D) melting point 
E) color 
A) odor 
B) compressibility 
C) flash point 
D) melting point 
E) color

Question 3

Which branch of science primarily involves the study of matter and the changes it undergoes?

Accepted Answer

A) biology 
B) technology 
C) physics 
D) chemistry 
E) All of the choices are correct. 
A) biology 
B) technology 
C) physics 
D) chemistry 
E) All of the choices are correct.

Question 4

In which state does matter have an indefinite shape and definite volume?

Accepted Answer

A) solid 
B) liquid 
C) gas 
D) All of the choices are correct. 
E) None of the choices are correct. 
A) solid 
B) liquid 
C) gas 
D) All of the choices are correct. 
E) None of the choices are correct.

Question 5

What is the appropriate number of significant figures necessary to express the result of the calculation below? 
(51.6)× (3.1416)

Accepted Answer

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

Question 6

Which temperature would feel the hottest?

Accepted Answer

A) 100°C 
B) 100°F 
C) 100 K 
D) All temperatures would feel equally hot. 
A) 100°C 
B) 100°F 
C) 100 K 
D) All temperatures would feel equally hot.

Question 7

What Fahrenheit temperature corresponds to -40.0°C?

Accepted Answer

A) -8°F 
B) 16.8°F 
C) -36.9°F 
D) -40.0°F 
E) -1.94°F 
A) -8°F 
B) 16.8°F 
C) -36.9°F 
D) -40.0°F 
E) -1.94°F

Question 8

When hydrogen (H2)and chlorine (Cl2)gases are mixed,hydrogen chloride (HCl)is produced.Hydrogen chloride is classified as what type of matter?

Accepted Answer

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

Question 9

Which statement concerning the classification of matter is FALSE?

Accepted Answer

A) All matter is either pure substance or a compound. 
B) An element is a pure substance that generally cannot be changed into a simpler form of matter. 
C) A compound is a pure substance made up of two or more different elements combined in a definite,reproducible way. 
D) A pure substance is composed of only one type of component. 
E) A mixture is the physical combination of two or more pure substances in which each substance retains its own identity. 
A) All matter is either pure substance or a compound. 
B) An element is a pure substance that generally cannot be changed into a simpler form of matter. 
C) A compound is a pure substance made up of two or more different elements combined in a definite,reproducible way. 
D) A pure substance is composed of only one type of component. 
E) A mixture is the physical combination of two or more pure substances in which each substance retains its own identity.

Question 10

What kind of change always results in the formation of new materials?

Accepted Answer

A) molecular 
B) exothermic 
C) endothermic 
D) physical 
E) chemical 
A) molecular 
B) exothermic 
C) endothermic 
D) physical 
E) chemical

Question 11

The presence of some error is a natural consequence of any measurement.

Accepted Answer

A) True 
 B)False

Question 12

How many centimeters correspond to 15.68 kilometers?

Accepted Answer

A) 1.568 × 106 cm 
B) 1.568 × 105 cm 
C) 1.568 × 10-4 cm 
D) 1568 cm 
E) 1.569 cm 
A) 1.568 × 106 cm 
B) 1.568 × 105 cm 
C) 1.568 × 10-4 cm 
D) 1568 cm 
E) 1.569 cm

Question 13

The terms mass and weight are identical.

Accepted Answer

A) True 
 B)False

Question 14

Which statement concerning changes in matter is FALSE?

Accepted Answer

A) A physical change alters the appearance of a substance,but not its identity. 
B) A chemical change alters the identity of a substance. 
C) A chemical change always results in the production of a new substance. 
D) A chemical change is also called a chemical reaction. 
E) Melting and freezing are chemical changes that change both the appearance of the substance as well as the identity of the substance. 
A) A physical change alters the appearance of a substance,but not its identity. 
B) A chemical change alters the identity of a substance. 
C) A chemical change always results in the production of a new substance. 
D) A chemical change is also called a chemical reaction. 
E) Melting and freezing are chemical changes that change both the appearance of the substance as well as the identity of the substance.

Question 15

Which of the following is an example of physical change?

Accepted Answer

A) boiling water 
B) burning paper 
C) a metal losing electrons to become a cation 
D) cooking eggs 
E) lighting a match 
A) boiling water 
B) burning paper 
C) a metal losing electrons to become a cation 
D) cooking eggs 
E) lighting a match

Question 16

If a person smokes 10.0 packs of cigarettes a week and each cigarette contains 5.00 mg of tar,how many years will she have to smoke to inhale 0.250 pounds of tar? 
[20 cigarettes = 1 pack,1 pound = 454 g and 1 year = 52 weeks]

Accepted Answer

A) 2.18 y 
B) 2.18 × 10-2 y 
C) 1.06 y 
D) 28.6 y 
E) 0.556 y 
A) 2.18 y 
B) 2.18 × 10-2 y 
C) 1.06 y 
D) 28.6 y 
E) 0.556 y

Question 17

Which is the summary of a large amount of scientific information?

Accepted Answer

A) hypothesis 
B) theory 
C) scientific law 
D) technology 
E) scientific method 
A) hypothesis 
B) theory 
C) scientific law 
D) technology 
E) scientific method

Question 18

What are the five phases of the Study Cycle?

Accepted Answer

A) study,flash cards,concept maps,class notes,solve problems 
B) big ideas,flash cards,repetition,participation,assess 
C) attend,review,study,repetition,assess 
D) preview,attend,study,repetition,identify big ideas 
E) preview,attend,review,study,assess 
A) study,flash cards,concept maps,class notes,solve problems 
B) big ideas,flash cards,repetition,participation,assess 
C) attend,review,study,repetition,assess 
D) preview,attend,study,repetition,identify big ideas 
E) preview,attend,review,study,assess

Question 19

Which of the following terms is most appropriate when classifying an apple?

Accepted Answer

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

Question 20

What type of property of matter is independent of the quantity of the substance?

Accepted Answer

A) chemical 
B) physical 
C) extensive 
D) intensive 
E) nuclear 
A) chemical 
B) physical 
C) extensive 
D) intensive 
E) nuclear

Exam 1: Chemistry - Methods and Measurement

What does the prefix "centi-" mean?

Which of the following is NOT a physical property of matter?

Which branch of science primarily involves the study of matter and the changes it undergoes?

In which state does matter have an indefinite shape and definite volume?

What is the appropriate number of significant figures necessary to express the result of the calculation below? (51.6)× (3.1416)

Which temperature would feel the hottest?

What Fahrenheit temperature corresponds to -40.0°C?

When hydrogen (H2)and chlorine (Cl2)gases are mixed,hydrogen chloride (HCl)is produced.Hydrogen chloride is classified as what type of matter?

Which statement concerning the classification of matter is FALSE?

What kind of change always results in the formation of new materials?

The presence of some error is a natural consequence of any measurement.

How many centimeters correspond to 15.68 kilometers?

The terms mass and weight are identical.

Which statement concerning changes in matter is FALSE?

Which of the following is an example of physical change?

If a person smokes 10.0 packs of cigarettes a week and each cigarette contains 5.00 mg of tar,how many years will she have to smoke to inhale 0.250 pounds of tar? [20 cigarettes = 1 pack,1 pound = 454 g and 1 year = 52 weeks]

Which is the summary of a large amount of scientific information?

What are the five phases of the Study Cycle?

Which of the following terms is most appropriate when classifying an apple?

What type of property of matter is independent of the quantity of the substance?

The Structure of the Atom and the Periodic Table

Structure and Properties of Ionic and Covalent Compounds

Calculations, chemical Changes, and the Chemical Equation

States of Matter: Gases, liquids, and Solids

Solutions

Energy,rate and Equilibrium

Acids and Bases

The Nucleus, radioactivity, and Nuclear Medicine

An Introduction to Organic Chemistry

The Unsaturated Hydrocarbons: Alkenes, alkynes, and Aromatics

Alcohols, phenols, thiols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Carboxylic Acid Derivatives

Amines and Amides

Carbohydrates

Lipids and Their Functions in Biochemical Systems

Protein Structure and Function

Enzymes

Introduction to Molecular Genetics

Carbohydrate Metabolism

Aerobic Respiration and Energy Production

Fatty Acid Metabolism

Filters

When hydrogen (H₂)and chlorine (Cl₂)gases are mixed,hydrogen chloride (HCl)is produced.Hydrogen chloride is classified as what type of matter?