Question 1

How many elements occur naturally?

Accepted Answer

A)   112
B)   92
C)   64
D)   32
E)   6F) All of the above
G) A) and E)

Question 2

Why is He positioned above Ne in the periodic table?

Accepted Answer

A)   They both have the same atomic mass.
B)   They both have the same number of electrons in their outermost orbital.
C)   They both have a full outermost orbital.
D)   They both have the same atomic number.
E)   They both have the same number of protons in their nuclei.F) C) and D)
G) A) and B)

Question 3

Be has an atomic number of 4 and an atomic mass of 9. How many protons does it have?

Accepted Answer

A)   4
B)   5
C)   9
D)   13
E)   7F) C) and D)
G) All of the above

Question 4

A solution containing 0.00001 moles of H+ has a pH of

Accepted Answer

A)   3
B)   5
C)   7
D)   9
E)   11F) A) and E)
G) B) and E)

Question 5

When an ATP molecule is used to supply energy, which of the following occurs?

Accepted Answer

A)   a phosphate bond is added
B)   a phosphate bond is broken
C)   oxygen is removed
D)   oxygen is added
E)   an adenine is addedF) B) and C)
G) All of the above

Question 6

How are fats, phospholipids, and steroids alike?

Accepted Answer

A)   They are all solid at room temperature.
B)   They each contain a polar phosphate group.
C)   They each contain only 1 fatty acid.
D)   They do not dissolve in water.
E)   They all contain at least one carbon ring.F) A) and B)
G) A) and C)

Question 7

What substance is used in medicine to produce various images of organs and tissues?

Accepted Answer

A)   A mixture
B)   A tracer
C)   An emulsion
D)   A colloid
E)   A sensorF) A) and E)
G) All of the above

Question 8

The monomer unit of a protein is

Accepted Answer

A)   fatty acids.
B)   amino acids.
C)   monosaccharides.
D)   polysaccharides.
E)   nucleic acids.F) C) and D)
G) None of the above

Question 9

A fat contains how many fatty acids?

Accepted Answer

A)   1
B)   2
C)   3
D)   4
E)   5F) A) and E)
G) A) and B)

Question 10

List the function of proteins that are formed from a combination of amino acids.

Accepted Answer

Functions of proteins include:
1. suppor...

Question 11

CaCl2 is a salt that forms as the result of what type of bond?

Accepted Answer

A)   covalent
B)   hydrogen
C)   polar
D)   non-polar
E)   ionicF) C) and D)
G) A) and C)

Question 12

Sugars with three to seven carbon atoms are called

Accepted Answer

A)   monosaccharides.
B)   disaccharides.
C)   trisaccharides.
D)   polysaccharides.
E)   steroids.F) B) and D)
G) B) and E)

Question 13

What is the symbol for sodium?

Accepted Answer

A)   Na
B)   S
C)   So
D)   N
E)   DmF) B) and E)
G) A) and D)

Exam 2: Chemistry of Life

What is the symbol for sodium?

Correct Answer
verified

Sugars with three to seven carbon atoms are called

Correct Answer
verified

CaCl₂ is a salt that forms as the result of what type of bond?

Correct Answer
verified

The monomer unit of a protein is

Correct Answer
verified

List the function of proteins that are formed from a combination of amino acids.

Correct Answer
verified
Functions of proteins include:
1. suppor...
View Answer

How are fats, phospholipids, and steroids alike?

Correct Answer
verified

Be has an atomic number of 4 and an atomic mass of 9. How many protons does it have?

Correct Answer
verified

What substance is used in medicine to produce various images of organs and tissues?

Correct Answer
verified

Why is He positioned above Ne in the periodic table?

Correct Answer
verified

When an ATP molecule is used to supply energy, which of the following occurs?

Correct Answer
verified

A solution containing 0.00001 moles of H⁺ has a pH of

Correct Answer
verified

A fat contains how many fatty acids?

Correct Answer
verified

How many elements occur naturally?

Correct Answer
verified

Exam 2: Chemistry of Life

What is the symbol for sodium?

Correct AnswerverifiedShow Answer

Sugars with three to seven carbon atoms are called

Correct AnswerverifiedShow Answer

CaCl2 is a salt that forms as the result of what type of bond?

Correct AnswerverifiedShow Answer

The monomer unit of a protein is

Correct AnswerverifiedShow Answer

List the function of proteins that are formed from a combination of amino acids.

Correct AnswerverifiedFunctions of proteins include:1. suppor...View AnswerShow Answer

How are fats, phospholipids, and steroids alike?

Correct AnswerverifiedShow Answer

Be has an atomic number of 4 and an atomic mass of 9. How many protons does it have?

Correct AnswerverifiedShow Answer

What substance is used in medicine to produce various images of organs and tissues?

Correct AnswerverifiedShow Answer

Why is He positioned above Ne in the periodic table?

Correct AnswerverifiedShow Answer

When an ATP molecule is used to supply energy, which of the following occurs?

Correct AnswerverifiedShow Answer

A solution containing 0.00001 moles of H+ has a pH of

Correct AnswerverifiedShow Answer

A fat contains how many fatty acids?

Correct AnswerverifiedShow Answer

How many elements occur naturally?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

CaCl₂ is a salt that forms as the result of what type of bond?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Functions of proteins include:
1. suppor...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

A solution containing 0.00001 moles of H⁺ has a pH of

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified