Question 1

Quantification is an important tool in understanding chemistry.

Accepted Answer

A) True 
 B)False

Question 2

Who discovered the atomic theory?

Accepted Answer

A) John Dalton 
B) Antoine Lavoisier 
C) Nivaldo Tro 
D) John Dalton and Antoine Lavoisier 
E) none of the above 
A) John Dalton 
B) Antoine Lavoisier 
C) Nivaldo Tro 
D) John Dalton and Antoine Lavoisier 
E) none of the above

Question 3

Antoine Lavoisier observed that burning objects in a closed container resulted in a loss of mass.

Accepted Answer

A) True 
 B)False

Question 4

Who discovered the law of conservation of mass?

Accepted Answer

A) John Dalton 
B) Antoine Lavoisier 
C) Nivaldo Tro 
D) John Dalton and Antoine Lavoisier 
E) none of the above 
A) John Dalton 
B) Antoine Lavoisier 
C) Nivaldo Tro 
D) John Dalton and Antoine Lavoisier 
E) none of the above

Question 5

Which statement about a hypothesis is TRUE?

Accepted Answer

A) It is a tentative interpretation or explanation. 
B) It has the potential to be proven wrong. 
C) It can be tested by experiments. 
D) It is part of the scientific method. 
E) All of the above statements are true. 
A) It is a tentative interpretation or explanation. 
B) It has the potential to be proven wrong. 
C) It can be tested by experiments. 
D) It is part of the scientific method. 
E) All of the above statements are true.

Question 6

An established theory is the pinnacle of scientific understanding.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following is an example of a scientific law?

Accepted Answer

A) All matter is composed of small,indestructible particles called atoms. 
B) In a chemical reaction,matter is neither created nor destroyed. 
C) When a can of soda pop is opened,a fizzing sound is heard. 
D) Flammable objects contain phlogiston. 
E) none of the above 
A) All matter is composed of small,indestructible particles called atoms. 
B) In a chemical reaction,matter is neither created nor destroyed. 
C) When a can of soda pop is opened,a fizzing sound is heard. 
D) Flammable objects contain phlogiston. 
E) none of the above

Question 8

The atomic theory explains why the law of conservation of mass is true.

Accepted Answer

A) True 
 B)False

Question 9

What is the definition of a scientific theory?

Accepted Answer

A) a brief statement that summarizes past observations and predicts future ones 
B) a model that explains the underlying reasons for observations and laws 
C) the equivalent of a scientific opinion which others may disagree with 
D) a method of learning that emphasizes reason as the way to understand the world 
E) none of the above 
A) a brief statement that summarizes past observations and predicts future ones 
B) a model that explains the underlying reasons for observations and laws 
C) the equivalent of a scientific opinion which others may disagree with 
D) a method of learning that emphasizes reason as the way to understand the world 
E) none of the above

Question 10

Which statement about the scientific method is TRUE?

Accepted Answer

A) The scientific method emphasizes reason as the way to understand the world. 
B) The scientific method emphasizes observation and reason as the way to understand the world. 
C) The scientific method emphasizes observation and experimentation as the way to understand the world. 
D) The scientific method emphasizes scientific laws as the way to understand the world. 
E) All of the above statements are false. 
A) The scientific method emphasizes reason as the way to understand the world. 
B) The scientific method emphasizes observation and reason as the way to understand the world. 
C) The scientific method emphasizes observation and experimentation as the way to understand the world. 
D) The scientific method emphasizes scientific laws as the way to understand the world. 
E) All of the above statements are false.

Question 11

Quantification involves measurement as part of an observation.

Accepted Answer

A) True 
 B)False

Question 12

Which of the statements below is NOT part of the scientific method?

Accepted Answer

A) observation and measurement 
B) formation of a hypothesis 
C) testing of a hypothesis by experimentation 
D) refinement of a hypothesis as needed 
E) All of the above steps are part of the scientific method. 
A) observation and measurement 
B) formation of a hypothesis 
C) testing of a hypothesis by experimentation 
D) refinement of a hypothesis as needed 
E) All of the above steps are part of the scientific method.

Question 13

Scientific theories are also called models.

Accepted Answer

A) True 
 B)False

Question 14

Which statement accurately describes the purpose of experiments?

Accepted Answer

A) Experiments are designed to produce the results predicted by a theory. 
B) Experiments can be replaced by a simple,logical reasoning of known facts. 
C) Experiments are designed to produce unexplainable results for further investigation. 
D) Experiments look for other observable predictions of a theory. 
E) none of the above 
A) Experiments are designed to produce the results predicted by a theory. 
B) Experiments can be replaced by a simple,logical reasoning of known facts. 
C) Experiments are designed to produce unexplainable results for further investigation. 
D) Experiments look for other observable predictions of a theory. 
E) none of the above

Question 15

When a sealed can of soda pop is opened,the carbon dioxide gas fizzes out because the pressure is released.

Accepted Answer

A) True 
 B)False

Question 16

The law of conservation of mass states,"In a chemical reaction matter can be created and destroyed."

Accepted Answer

A) True 
 B)False

Question 17

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

Accepted Answer

A statement based on a number of similar

Question 18

Molecules are responsible for scattering light which causes the colors of the sunset.

Accepted Answer

A) True 
 B)False

Question 19

Both carbon dioxide molecules and water molecules consist of three atoms bonded together in a straight line.

Accepted Answer

A) True 
 B)False

Question 20

The phlogiston theory of combustion is still considered correct today.

Accepted Answer

A) True 
 B)False

Quantification is an important tool in understanding chemistry.

Who discovered the atomic theory?

Antoine Lavoisier observed that burning objects in a closed container resulted in a loss of mass.

Who discovered the law of conservation of mass?

Which statement about a hypothesis is TRUE?

An established theory is the pinnacle of scientific understanding.

Which of the following is an example of a scientific law?

The atomic theory explains why the law of conservation of mass is true.

What is the definition of a scientific theory?

Which statement about the scientific method is TRUE?

Quantification involves measurement as part of an observation.

Which of the statements below is NOT part of the scientific method?

Scientific theories are also called models.

Which statement accurately describes the purpose of experiments?

When a sealed can of soda pop is opened,the carbon dioxide gas fizzes out because the pressure is released.

The law of conservation of mass states,"In a chemical reaction matter can be created and destroyed."

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

Molecules are responsible for scattering light which causes the colors of the sunset.

Both carbon dioxide molecules and water molecules consist of three atoms bonded together in a straight line.

The phlogiston theory of combustion is still considered correct today.

Measurement and Problem Solving

Matter and Energy

Atoms and Elements

Molecules and Compounds

Chemical Composition

Chemical Reactions

Quantities in Chemical Reactions

Electrons in Atoms and the Periodic Table

Chemical Bonding

Gases

Liquids, solids, and Intermolecular Forces

Solutions

Acids and Bases

Chemical Equilibrium

Oxidation and Reduction

Radioactivity and Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters

Exam 1: The Chemical World

Quantification is an important tool in understanding chemistry.

Who discovered the atomic theory?

Antoine Lavoisier observed that burning objects in a closed container resulted in a loss of mass.

Who discovered the law of conservation of mass?

Which statement about a hypothesis is TRUE?

An established theory is the pinnacle of scientific understanding.

Which of the following is an example of a scientific law?

The atomic theory explains why the law of conservation of mass is true.

What is the definition of a scientific theory?

Which statement about the scientific method is TRUE?

Quantification involves measurement as part of an observation.

Which of the statements below is NOT part of the scientific method?

Scientific theories are also called models.

Which statement accurately describes the purpose of experiments?

When a sealed can of soda pop is opened,the carbon dioxide gas fizzes out because the pressure is released.

The law of conservation of mass states,"In a chemical reaction matter can be created and destroyed."

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

Molecules are responsible for scattering light which causes the colors of the sunset.

Both carbon dioxide molecules and water molecules consist of three atoms bonded together in a straight line.

The phlogiston theory of combustion is still considered correct today.

Measurement and Problem Solving

Matter and Energy

Atoms and Elements

Molecules and Compounds

Chemical Composition

Chemical Reactions

Quantities in Chemical Reactions

Electrons in Atoms and the Periodic Table

Chemical Bonding

Gases

Liquids, solids, and Intermolecular Forces

Solutions

Acids and Bases

Chemical Equilibrium

Oxidation and Reduction

Radioactivity and Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters