Question 1

Scientific theories are also called models.

Accepted Answer

A) True 
 B)False

Question 2

A scientific theory describes the underlying reasons for observations and laws.

Accepted Answer

A) True 
 B)False

Question 3

Which of the following is an example of an observation?

Accepted Answer

A)  All matter is composed of small,indestructible particles called atoms.
B)  Reactions occur due to the transfer of electrons.
C)  When a can of soda pop is opened,a fizzing sound is heard.
D)  Flammable objects contain phlogiston.
E)  none of the aboveF) All of the above
G) B) and C)

Question 4

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

Accepted Answer

A) True 
 B)False

Question 5

The first step in acquiring scientific knowledge is often the observation or measurement of some aspect of nature.

Accepted Answer

A) True 
 B)False

Question 6

What are the important characteristics of the scientific method?

Accepted Answer

The important characteristics of the sci...

Question 7

The definition of a scientific law is:

Accepted Answer

A)  the same as a hypothesis.
B)  a way of learning that emphasizes observation and experimentation.
C)  the underlying reason for a scientific theory.
D)  a number of similar observations generalized into a brief statement summarizing past observations and predicting new ones.
E)  none of the aboveF) B) and C)
G) C) and D)

Question 8

A theory is always true and can never be proven as wrong.

Accepted Answer

A) True 
 B)False

Question 9

Theories can be tested and validated through experimentation.

Accepted Answer

A) True 
 B)False

Question 10

Atoms and molecules determine how matter behaves.

Accepted Answer

A) True 
 B)False

Question 11

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.F) A) and C)
G) B) and E)

Question 12

Antoine Lavoisier proposed the atomic theory.

Accepted Answer

A) True 
 B)False

Question 13

The phlogiston theory of combustion is still considered correct today.

Accepted Answer

A) True 
 B)False

Question 14

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 aboveF) A) and B)
G) A) and C)

Exam 1: The Chemical World

Scientific theories are also called models.

Correct Answer
verified

Antoine Lavoisier proposed the atomic theory.

Correct Answer
verified

Which of the following is an example of an observation?

Correct Answer
verified

A theory is always true and can never be proven as wrong.

Correct Answer
verified

The definition of a scientific law is:

Correct Answer
verified

A scientific theory describes the underlying reasons for observations and laws.

Correct Answer
verified

What are the important characteristics of the scientific method?

Correct Answer
verified
The important characteristics of the sci...
View Answer

The phlogiston theory of combustion is still considered correct today.

Correct Answer
verified

Theories can be tested and validated through experimentation.

Correct Answer
verified

Who discovered the law of conservation of mass?

Correct Answer
verified

Atoms and molecules determine how matter behaves.

Correct Answer
verified

Which statement about a hypothesis is TRUE?

Correct Answer
verified

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

Correct Answer
verified

The first step in acquiring scientific knowledge is often the observation or measurement of some aspect of nature.

Correct Answer
verified

Exam 1: The Chemical World

Scientific theories are also called models.

Correct AnswerverifiedShow Answer

Antoine Lavoisier proposed the atomic theory.

Correct AnswerverifiedShow Answer

Which of the following is an example of an observation?

Correct AnswerverifiedShow Answer

A theory is always true and can never be proven as wrong.

Correct AnswerverifiedShow Answer

The definition of a scientific law is:

Correct AnswerverifiedShow Answer

A scientific theory describes the underlying reasons for observations and laws.

Correct AnswerverifiedShow Answer

What are the important characteristics of the scientific method?

Correct AnswerverifiedThe important characteristics of the sci...View AnswerShow Answer

The phlogiston theory of combustion is still considered correct today.

Correct AnswerverifiedShow Answer

Theories can be tested and validated through experimentation.

Correct AnswerverifiedShow Answer

Who discovered the law of conservation of mass?

Correct AnswerverifiedShow Answer

Atoms and molecules determine how matter behaves.

Correct AnswerverifiedShow Answer

Which statement about a hypothesis is TRUE?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The first step in acquiring scientific knowledge is often the observation or measurement of some aspect of nature.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
The important characteristics of the sci...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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