Question 1

Which of the following statements is a natural law?

Accepted Answer

A) The mass of substances,before and after a chemical change,is the same. 
B) If the volume of a gas doubles,the pressure decreases by a factor of two. 
C) The energy derived from a change in mass is found by E = mC₂. 
D) all of the above 
E) none of the above 
A) The mass of substances,before and after a chemical change,is the same. 
B) If the volume of a gas doubles,the pressure decreases by a factor of two. 
C) The energy derived from a change in mass is found by E = mC₂. 
D) all of the above 
E) none of the above D

Question 2

Why would a student at first find a problem impossible to solve when later the solution is obvious?

Accepted Answer

A) The student did not have biology. 
B) The student did not have chemistry. 
C) The student did not have physics. 
D) The student had an unconscious assumption. 
E) none of the above 
A) The student did not have biology. 
B) The student did not have chemistry. 
C) The student did not have physics. 
D) The student had an unconscious assumption. 
E) none of the above D

Question 3

Table salt contains which of the following for proper thyroid function?

Accepted Answer

A) potassium bromide 
B) potassium chloride 
C) potassium iodide 
D) potassium oxide 
E) all of the above 
A) potassium bromide 
B) potassium chloride 
C) potassium iodide 
D) potassium oxide 
E) all of the above C

Question 4

Who was the American chemistry student that discovered an inexpensive method for producing aluminum metal from its ore?

Accepted Answer

A) Frederick Alum 
B) Thomas Edison 
C) Charles Goodyear 
D) Charles Hall 
E) none of the above 
A) Frederick Alum 
B) Thomas Edison 
C) Charles Goodyear 
D) Charles Hall 
E) none of the above

Question 5

Which of the following statements is a scientific theory?

Accepted Answer

A) Atoms contain protons,neutrons,and electrons. 
B) Equal volumes of gases contain the same number of molecules. 
C) The energy of two gas molecules is the same before and after a collision. 
D) all of the above 
E) none of the above 
A) Atoms contain protons,neutrons,and electrons. 
B) Equal volumes of gases contain the same number of molecules. 
C) The energy of two gas molecules is the same before and after a collision. 
D) all of the above 
E) none of the above

Question 6

"Worth your salt" refers to people who earn which of the following?

Accepted Answer

A) high wages 
B) low wages 
C) respect 
D) salt rations 
E) none of the above 
A) high wages 
B) low wages 
C) respect 
D) salt rations 
E) none of the above

Question 7

What is the term for a tentative proposal of a scientific principle that attempts to explain the meaning of a set of data collected in an experiment?

Accepted Answer

A) estimation 
B) hypothesis 
C) natural law 
D) theory 
E) none of the above 
A) estimation 
B) hypothesis 
C) natural law 
D) theory 
E) none of the above

Question 8

What is the term for an extensively tested proposal of a scientific principle that states a measurable relationship at different conditions?

Accepted Answer

A) experiment 
B) hypothesis 
C) natural law 
D) theory 
E) none of the above 
A) experiment 
B) hypothesis 
C) natural law 
D) theory 
E) none of the above

Question 9

What is the term for the study of chemical substances that contain the element carbon?

Accepted Answer

A) biochemistry 
B) green chemistry 
C) inorganic chemistry 
D) organic chemistry 
E) none of the above 
A) biochemistry 
B) green chemistry 
C) inorganic chemistry 
D) organic chemistry 
E) none of the above

Question 10

What is the minimum number of straight,continuous lines that are necessary to connect the following nine dots?

Accepted Answer

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

Question 11

Who is generally considered the founder of modern chemistry?

Accepted Answer

A) Aristotle 
B) Robert Boyle 
C) John Dalton 
D) Antoine Lavoisier 
E) none of the above 
A) Aristotle 
B) Robert Boyle 
C) John Dalton 
D) Antoine Lavoisier 
E) none of the above

Question 12

What is the difference between a scientific theory and a natural law?

Accepted Answer

A) A theory is a tentative proposal and a law is a tested proposal. 
B) A law is a tentative proposal and a theory is a tested proposal. 
C) A theory explains behavior and a law states a measurable relationship. 
D) A law explains behavior and a theory states a measurable relationship. 
E) none of the above 
A) A theory is a tentative proposal and a law is a tested proposal. 
B) A law is a tentative proposal and a theory is a tested proposal. 
C) A theory explains behavior and a law states a measurable relationship. 
D) A law explains behavior and a theory states a measurable relationship. 
E) none of the above

Question 13

What subject is referred to as the central science?

Accepted Answer

A) biology 
B) chemistry 
C) geology 
D) physics 
E) none of the above 
A) biology 
B) chemistry 
C) geology 
D) physics 
E) none of the above

Question 14

In which of the following industries does chemistry play an important role?

Accepted Answer

A) agriculture 
B) medicine 
C) petrochemical 
D) pharmaceutical 
E) all of the above 
A) agriculture 
B) medicine 
C) petrochemical 
D) pharmaceutical 
E) all of the above

Question 15

What subject is said to be at the crossroads of biology,physics,and geology?

Accepted Answer

A) biochemistry 
B) chemistry 
C) environmental chemistry 
D) geochemistry 
E) none of the above 
A) biochemistry 
B) chemistry 
C) environmental chemistry 
D) geochemistry 
E) none of the above

Question 16

What are the sources of ordinary table salt?

Accepted Answer

A) mining rock salt 
B) dissolving salt beds 
C) evaporating salt water 
D) all of the above 
E) none of the above 
A) mining rock salt 
B) dissolving salt beds 
C) evaporating salt water 
D) all of the above 
E) none of the above

Question 17

What is the term for an extensively tested proposal of a scientific principle that explains the behavior of nature?

Accepted Answer

A) experiment 
B) hypothesis 
C) natural law 
D) theory 
E) none of the above 
A) experiment 
B) hypothesis 
C) natural law 
D) theory 
E) none of the above

Question 18

What is the term for an investigation that entails performing an experiment,proposing a hypothesis,testing the hypothesis,and stating a theory or law?

Accepted Answer

A) alchemy 
B) chemistry 
C) science 
D) scientific method 
E) none of the above 
A) alchemy 
B) chemistry 
C) science 
D) scientific method 
E) none of the above

Question 19

Which of the following is a positive association with the study of chemistry?

Accepted Answer

A) Chemistry is relevant to our daily lives. 
B) Chemistry offers career opportunities. 
C) Chemistry has biomedical applications. 
D) Chemistry benefits society. 
E) all of the above 
A) Chemistry is relevant to our daily lives. 
B) Chemistry offers career opportunities. 
C) Chemistry has biomedical applications. 
D) Chemistry benefits society. 
E) all of the above

Question 20

In a survey by the American Chemical Society,what percentage of entering college students thought that chemistry is a difficult subject?

Accepted Answer

A) 1% 
B) 5% 
C) 10% 
D) 83% 
E) 100% 
A) 1% 
B) 5% 
C) 10% 
D) 83% 
E) 100%

Exam 1: Introduction to Chemistry

Which of the following statements is a natural law?

Why would a student at first find a problem impossible to solve when later the solution is obvious?

Table salt contains which of the following for proper thyroid function?

Who was the American chemistry student that discovered an inexpensive method for producing aluminum metal from its ore?

Which of the following statements is a scientific theory?

"Worth your salt" refers to people who earn which of the following?

What is the term for a tentative proposal of a scientific principle that attempts to explain the meaning of a set of data collected in an experiment?

What is the term for an extensively tested proposal of a scientific principle that states a measurable relationship at different conditions?

What is the term for the study of chemical substances that contain the element carbon?

What is the minimum number of straight,continuous lines that are necessary to connect the following nine dots?

Who is generally considered the founder of modern chemistry?

What is the difference between a scientific theory and a natural law?

What subject is referred to as the central science?

In which of the following industries does chemistry play an important role?

What subject is said to be at the crossroads of biology,physics,and geology?

What are the sources of ordinary table salt?

What is the term for an extensively tested proposal of a scientific principle that explains the behavior of nature?

What is the term for an investigation that entails performing an experiment,proposing a hypothesis,testing the hypothesis,and stating a theory or law?

Which of the following is a positive association with the study of chemistry?

In a survey by the American Chemical Society,what percentage of entering college students thought that chemistry is a difficult subject?

The Metric System

Matter and Energy

Models of the Atom

The Periodic Table

Language of Chemistry

Chemical Reactions

The Mole Concept

Chemical Equation Calculations

Gases

Liquids and Solids

Chemical Bonding

Solutions

Acids and Bases

Advanced Problem Solving

Chemical Equilibrium

Oxidation and Reduction

Nuclear Chemistry

Organic Chemistry

Biochemistry

Interlude: Prerequisite Science Skills

Filters