Question 1

In ionic bonding,

Accepted Answer

A)  electrons are transferred from one atom to another.
B)  the charge of the ion does not play a role in the bond.
C)  only non-polar molecules are involved.
D)  two hydrogen atoms share one pair of electrons.
E)  a "sea of electrons" forms.F) C) and D)
G) A) and D)

Question 2

If the potential energy in the chemical bonds of the reactants is greater than the potential energy in the chemical bonds of the product,

Accepted Answer

A)  energy must be supplied for the reaction to occur.
B)  the chemical reaction equalizes the potential energy levels.
C)  energy is not a factor in the reaction.
D)  energy has not been gained or lost.
E)  energy is released by the reaction.F) A) and D)
G) C) and D)

Question 3

-Water accounts for 50% of the weight of a young adult female and 60% of a young adult male.What kind of atom is found at "C"?

Accepted Answer

A)  polar covalent bond
B)  water molecule
C)  hydrogen bond
D)  hydrogen atom
E)  oxygen atomF) A) and D)
G) C) and D)

Question 4

Molecules that form when electrons are shared unequally between atoms are called

Accepted Answer

A)  salt molecules.
B)  polar molecules.
C)  nonpolar molecules.
D)  lopsided molecules.
E)  None of these choices are correct.F) A) and B)
G) D) and E)

Question 5

The energy stored in ATP is a form of ________ energy.

Accepted Answer

A)  mechanical
B)  heat
C)  electrical
D)  chemical
E)  kineticF) All of the above
G) C) and E)

Question 6

-The sodium chloride molecule breaks apart in water.What does "A" represent?

Accepted Answer

A)  chloride ion
B)  dissociation
C)  water molecule
D)  sodium ion
E)  salt crystalF) None of the above
G) A) and B)

Question 7

The four most abundant elements in the human body are

Accepted Answer

A)  calcium,hydrogen,sodium,and potassium.
B)  carbon,oxygen,magnesium,and zinc.
C)  carbon,hydrogen,oxygen,and iron.
D)  carbon,hydrogen,oxygen,and nitrogen.
E)  carbon,sulfur,calcium,and potassium.F) A) and E)
G) D) and E)

Question 8

True or false? Synthesis reactions are also called catabolic reactions.

Accepted Answer

A) True 
 B)False

Exam 2: The Chemical Basis of Life

-The sodium chloride molecule breaks apart in water.What does "A" represent?

Correct Answer
verified

The four most abundant elements in the human body are

Correct Answer
verified

-Water accounts for 50% of the weight of a young adult female and 60% of a young adult male.What kind of atom is found at "C"?

Correct Answer
verified

True or false? Synthesis reactions are also called catabolic reactions.

Correct Answer
verified

Molecules that form when electrons are shared unequally between atoms are called

Correct Answer
verified

In ionic bonding,

Correct Answer
verified

If the potential energy in the chemical bonds of the reactants is greater than the potential energy in the chemical bonds of the product,

Correct Answer
verified

The energy stored in ATP is a form of ________ energy.

Correct Answer
verified

Exam 2: The Chemical Basis of Life

-The sodium chloride molecule breaks apart in water.What does "A" represent?

Correct AnswerverifiedShow Answer

The four most abundant elements in the human body are

Correct AnswerverifiedShow Answer

-Water accounts for 50% of the weight of a young adult female and 60% of a young adult male.What kind of atom is found at "C"?

Correct AnswerverifiedShow Answer

True or false? Synthesis reactions are also called catabolic reactions.

Correct AnswerverifiedShow Answer

Molecules that form when electrons are shared unequally between atoms are called

Correct AnswerverifiedShow Answer

In ionic bonding,

Correct AnswerverifiedShow Answer

If the potential energy in the chemical bonds of the reactants is greater than the potential energy in the chemical bonds of the product,

Correct AnswerverifiedShow Answer

The energy stored in ATP is a form of ________ energy.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified