Filters
Question type

Study Flashcards

Carbon dating is a common method employed in dating certain kinds of fossils.It is based upon the radioactive decay of an isotope of carbon (C14) .Referring to the atomic number of carbon attained from the periodic table,how many neutrons does C14 have?


A) 2
B) 4
C) 8
D) 12
E) 14

F) All of the above
G) B) and C)

Correct Answer

verifed

verified

If a person is looking to eat a breakfast that will help supply them with energy for the entire course of the day,which of the following foods would they want to include?


A) pancakes with maple syrup
B) bacon,eggs,and toast
C) cup of coffee and a donut
D) bowl of grapes and a glass of milk
E) All of these choices would provide the same potential for all day energy.

F) All of the above
G) B) and C)

Correct Answer

verifed

verified

A hydrolysis reaction involves the loss of water.

A) True
B) False

Correct Answer

verifed

verified

How are fats,phospholipids,and steroids alike?


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) B) and E)
G) C) and E)

Correct Answer

verifed

verified

A solution with a pH of 7 has 10 times as many H+ as a pH of 6.

A) True
B) False

Correct Answer

verifed

verified

On a warm day in April,Tina jumped into the swimming pool.To her surprise the water was really cold.Which property of water did she discover?


A) Water molecules are cohesive.
B) The temperature of liquid water rises and falls slowly.
C) Water possesses hydrogen bonds.
D) Water is a polar molecule.
E) Frozen water is less dense than liquid water.

F) A) and E)
G) B) and D)

Correct Answer

verifed

verified

What is the symbol for sodium?


A) Na
B) S
C) So
D) N
E) Dm

F) A) and D)
G) B) and D)

Correct Answer

verifed

verified

Hydrogen bonds


A) result from the loss of neutrons by an atom.
B) result in the formation of salts.
C) involve the loss and gain of electrons.
D) involve the sharing of electrons.
E) are relatively weak and can be broken rather easily.

F) A) and B)
G) B) and E)

Correct Answer

verifed

verified

Starch,cellulose,and glycogen are alike in that


A) they are all made of glucose.
B) they contain the same number of side chains.
C) they have the same types of bonds between the monomer units.
D) they are all found in animals.
E) they can all be digested by our bodies.

F) B) and C)
G) B) and E)

Correct Answer

verifed

verified

The main function of carbohydrates is for long-term energy storage.

A) True
B) False

Correct Answer

verifed

verified

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


A) 3.
B) 5.
C) 7.
D) 9.
E) 11.

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

Correct Answer

verifed

verified

Water makes up 60-70% of total body weight.

A) True
B) False

Correct Answer

verifed

verified

Atoms that share electrons have what type of bonds?


A) covalent
B) neutral
C) hydrogen
D) colloidal
E) ionic

F) B) and C)
G) B) and E)

Correct Answer

verifed

verified

Showing 61 - 73 of 73

Related Exams

Show Answer