What is the major difference between polar and nonpolar covalent bonds?
What will be an ideal response
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Question 2) Which property of water is demonstrated when we sweat?
A) high heat of vaporization
B) polar solvent properties
C) high heat capacity
D) reactivity
E) cushioning
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Question 3) Carbohydrates are stored in the liver and skeletal muscles in the form of ________.
A) triglycerides
B) glycogen
C) glucose
D) cholesterol
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Question 4) Which of the following is NOT considered a factor in influencing a reaction rate?
A) time
B) concentration of reactants
C) temperature
D) particle size
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Question 5) All chemical reactions are theoretically reversible. Comment on this statement.
What will be an ideal response
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Question 6) Lithium has an atomic number of 3. How many electrons are there in the outermost (valence) shell?
A) one
B) two
C) zero
D) three
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Question 7) The single most abundant protein in the body is ________.
A) hemoglobin
B) collagen
C) DNA
D) glucose
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Question 8) When DNA is replicated, it is necessary for the two strands to unzip temporarily. Choose which bonding type is most appropriate for holding the strands together in this way.
A) non-polar covalent bonding
B) hydrogen bonding
C) ionic bonding
D) polar covalent bonding
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Question 9) A chemical bond never occurs between components of a mixture. Discuss this.
What will be an ideal response
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Question 10) Amino acids joining together to make a peptide is a good example of a(n) ________ reaction.
A) decomposition
B) reversible
C) synthesis
D) exchange
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