Question 1

An acid is defined as an electrolyte that releases hydroxide ions (OH-)in water.

Accepted Answer

A) True 
 B)False

Question 2

Carbon dioxide is

Accepted Answer

A)   inhaled in large quantities from the environment.
B)   a waste product of metabolic processes.
C)   an element.
D)   a salt.
E)   an electrolyte.F) B) and D)
G) D) and E)

Question 3

Understanding ________ is essential for understanding anatomy and physiology because body structures and functions result from chemical changes.

Accepted Answer

The answer of Understanding ________ is essential for understanding anatomy...

Question 4

________ is defined as anything that has weight and takes up space.

Accepted Answer

The answer of ________ is defined as anything that has...

Question 5

A ________ reaction is symbolized as A+B→AB.

Accepted Answer

The answer of A ________ reaction is symbolized as A+B→AB....

Question 6

A decomposition reaction can be symbolized as ________.

Accepted Answer

A)   A+B→C+D
B)   A+B→AB
C)   AB→A+B
D)   C+D→AB
E)   AB + CD → AC + BDF) A) and C)
G) B) and D)

Question 7

Each element is composed of characteristic tiny particles called ________.

Accepted Answer

The answer of Each element is composed of characteristic tiny...

Question 8

As the concentration of hydrogen ions increases,a solution's pH decreases.

Accepted Answer

A) True 
 B)False

Question 9

At the cellular level of organization,biology becomes the study of

Accepted Answer

A)   organs.
B)   chemistry.
C)   tissues.
D)   organ systems.
E)   human populations.F) A) and E)
G) A) and B)

Question 10

An element with an atomic number of 6 contains 12 protons.

Accepted Answer

A) True 
 B)False

Question 11

Water is an example of a compound.

Accepted Answer

A) True 
 B)False

Question 12

A salt is a compound composed of oppositely charged ions.

Accepted Answer

A) True 
 B)False

Question 13

Atoms that gain or lose electrons become electrically charged and are called ________.

Accepted Answer

The answer of Atoms that gain or lose electrons become...

Question 14

The branch of science that deals with the composition of matter is ________.

Accepted Answer

A)   histology
B)   chemistry
C)   physiology
D)   biology
E)   cytologyF) A) and B)
G) None of the above

Question 15

In a water molecule,shared electrons spend more time at the oxygen pole than the hydrogen pole,an example of ________ bonds.

Accepted Answer

A)   polar covalent
B)   non-polar covalent
C)   ionic
D)   hydrogenE) C) and D)
F) B) and D)

Question 16

The molecular formula for compounds like sodium chloride (NaCl)give the relative amounts of each element present.

Accepted Answer

A) True 
 B)False

Question 17

The pH scale ranges from 0 to 14.

Accepted Answer

A) True 
 B)False

Question 18

The attraction of the positive hydrogen end of a polar molecule to the negative nitrogen or oxygen end of another polar molecule is called a(an)

Accepted Answer

A)   ionic bond.
B)   double bond.
C)   triple bond.
D)   hydrogen bond.
E)   covalent bond.F) B) and E)
G) C) and D)

Question 19

The electrons in the outermost shell of an atom determine its

Accepted Answer

A)   shape.
B)   weight.
C)   chemical behavior.
D)   mass.
E)   atomic number.F) B) and C)
G) D) and E)

Question 20

________ is the most abundant compound in living material.

Accepted Answer

The answer of ________ is the most abundant compound in...

Exam 2: Chemical Basis of Life

An element with an atomic number of 6 contains 12 protons.

Correct AnswerverifiedShow Answer

________ is the most abundant compound in living material.

Correct AnswerverifiedShow Answer

The branch of science that deals with the composition of matter is ________.

Correct AnswerverifiedShow Answer

The electrons in the outermost shell of an atom determine its

Correct AnswerverifiedShow Answer

The pH scale ranges from 0 to 14.

Correct AnswerverifiedShow Answer

A decomposition reaction can be symbolized as ________.

Correct AnswerverifiedShow Answer

________ is defined as anything that has weight and takes up space.

Correct AnswerverifiedShow Answer

At the cellular level of organization,biology becomes the study of

Correct AnswerverifiedShow Answer

As the concentration of hydrogen ions increases,a solution's pH decreases.

Correct AnswerverifiedShow Answer

Understanding ________ is essential for understanding anatomy and physiology because body structures and functions result from chemical changes.

Correct AnswerverifiedShow Answer

Atoms that gain or lose electrons become electrically charged and are called ________.

Correct AnswerverifiedShow Answer

A salt is a compound composed of oppositely charged ions.

Correct AnswerverifiedShow Answer

Carbon dioxide is

Correct AnswerverifiedShow Answer

The molecular formula for compounds like sodium chloride (NaCl)give the relative amounts of each element present.

Correct AnswerverifiedShow Answer

An acid is defined as an electrolyte that releases hydroxide ions (OH-)in water.

Correct AnswerverifiedShow Answer

A ________ reaction is symbolized as A+B→AB.

Correct AnswerverifiedShow Answer

The attraction of the positive hydrogen end of a polar molecule to the negative nitrogen or oxygen end of another polar molecule is called a(an)

Correct AnswerverifiedShow Answer

In a water molecule,shared electrons spend more time at the oxygen pole than the hydrogen pole,an example of ________ bonds.

Correct AnswerverifiedShow Answer

Each element is composed of characteristic tiny particles called ________.

Correct AnswerverifiedShow Answer

Water is an example of a compound.

Correct AnswerverifiedShow Answer

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An acid is defined as an electrolyte that releases hydroxide ions (OH^-)in water.

Correct Answer
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