Question 1

A ribosome exists as an association between different ribosomal protein subunits. The entire structure of the ribosome with its associations between subunits is considered the

Accepted Answer

A)  primary structure.
B)  secondary structure.
C)  tertiary structure.
D)  quaternary structure.E) B) and D)
F) B) and C)

Question 2

Considering the number of valence electrons carbon has, what is the maximum number of hydrogen atoms a free carbon atom may bond with?

Accepted Answer

A)  1
B)  2
C)  4
D)  8E) B) and C)
F) C) and D)

Question 3

In an ionic bond

Accepted Answer

A)  each atom gains electrons.
B)  atoms share a pair or more of electrons.
C)  oppositely charged atoms attract.
D)  like-charged atoms repel.E) None of the above
F) B) and D)

Question 4

Exposure to ionizing radiation may

Accepted Answer

A)  cloud the lens of the eye.
B)  cause cancer.
C)  interfere with normal growth.
D)  All of the answer choices are correct.E) All of the above
F) A) and D)

Question 5

Sodium and chloride atoms combine readily because they both lose electrons.

Accepted Answer

A) True 
 B)False

Question 6

When placed into water, the ionic compound NaCl will

Accepted Answer

A)  bond more strongly to each other.
B)  dissociate into Na⁺ and Cl⁻ ions.
C)  bond covalently with water molecules, forming HCl and NaOH.
D)  decompose.E) B) and C)
F) All of the above

Question 7

The difference between carbon-13 and carbon-14 is their number of ________.

Accepted Answer

The answer of The difference between carbon-13 and carbon-14 is...

Question 8

Water is an example of a compound.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following substances is an element?

Accepted Answer

A)  Iron
B)  Water
C)  Sodium chloride
D)  GlucoseE) B) and C)
F) B) and D)

Question 10

Consider the following list of commonly found items and their pH values: Battery acid (1.0) , vinegar (2.2) , grapes (3.5-4.5) , tomato (4.0-4.5) , beer (4.2) , coffee (5.0) , white bread (5.0-6.0) , butter (6.1-6.4) , egg whites (7.6-8.0) , baking soda (8.3) , milk of magnesia (10.6) , bleach (12.8) 
Based on your knowledge of acid and base reactions, which of the following would be most likely to react with a base to form a salt?

Accepted Answer

A)  Bleach
B)  Battery acid
C)  Coffee
D)  Egg whitesE) B) and D)
F) B) and C)

Exam 2: Chemical Basis of Life

Water is an example of a compound.

Correct Answer
verified

Sodium and chloride atoms combine readily because they both lose electrons.

Correct Answer
verified

The difference between carbon-13 and carbon-14 is their number of ________.

Correct Answer
verified

Exposure to ionizing radiation may

Correct Answer
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In an ionic bond

Correct Answer
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When placed into water, the ionic compound NaCl will

Correct Answer
verified

Correct Answer
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Considering the number of valence electrons carbon has, what is the maximum number of hydrogen atoms a free carbon atom may bond with?

Correct Answer
verified

Which of the following substances is an element?

Correct Answer
verified

A ribosome exists as an association between different ribosomal protein subunits. The entire structure of the ribosome with its associations between subunits is considered the

Correct Answer
verified

Exam 2: Chemical Basis of Life

Water is an example of a compound.

Correct AnswerverifiedShow Answer

Sodium and chloride atoms combine readily because they both lose electrons.

Correct AnswerverifiedShow Answer

The difference between carbon-13 and carbon-14 is their number of ________.

Correct AnswerverifiedShow Answer

Exposure to ionizing radiation may

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In an ionic bond

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When placed into water, the ionic compound NaCl will

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Considering the number of valence electrons carbon has, what is the maximum number of hydrogen atoms a free carbon atom may bond with?

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Which of the following substances is an element?

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A ribosome exists as an association between different ribosomal protein subunits. The entire structure of the ribosome with its associations between subunits is considered the

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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