Jlans 29 Name Date Section REVIEW Check Your Recall a neutral solution has a pH Fill in the blanks: An acidic solution has a pH value of value of , and a basic (alkaline) solution has a pH value of and its pH will 2 Adding hydrogen ions to a solution will make the solution more a. acidic; increase b. basic; increase C. acidic; decrease d. basic; decrease 3 What does a buffer do when hydrogen ions are added to a solution? a. The buffer keeps the pH of a solution neutral. b. The buffer releases base ions. C. The buffer releases additional hydrogen ions. d. The buffer binds the hydrogen ions to remove them from the solution. 4 Which of the following statements about chemical reactions is false? a. The rate of a chemical reaction increases when temperature decreases. b. A chemical reaction occurs when chemical bonds are formed, broken, or rearranged. c. A chemical reaction occurs when electrons are transferred between molecules. d. All of the above are true. 5 How does an enzyme affect the rate of a chemical reaction? 6An enzyme that has lost its shape a. is denatured and no longer functional. b. is denatured but still functional. is not different from a regular enzyme as shape is not important. d. can be restored by extreme temperatures or pH swings. 7 Fill in the blanks: Electrons are in an ionic bond, whereas they in a polar covalent bond, and are in a nonpolar covalent bond. Chomi
Jlans 29 Name Date Section REVIEW Check Your Recall a neutral solution has a pH Fill in the blanks: An acidic solution has a pH value of value of , and a basic (alkaline) solution has a pH value of and its pH will 2 Adding hydrogen ions to a solution will make the solution more a. acidic; increase b. basic; increase C. acidic; decrease d. basic; decrease 3 What does a buffer do when hydrogen ions are added to a solution? a. The buffer keeps the pH of a solution neutral. b. The buffer releases base ions. C. The buffer releases additional hydrogen ions. d. The buffer binds the hydrogen ions to remove them from the solution. 4 Which of the following statements about chemical reactions is false? a. The rate of a chemical reaction increases when temperature decreases. b. A chemical reaction occurs when chemical bonds are formed, broken, or rearranged. c. A chemical reaction occurs when electrons are transferred between molecules. d. All of the above are true. 5 How does an enzyme affect the rate of a chemical reaction? 6An enzyme that has lost its shape a. is denatured and no longer functional. b. is denatured but still functional. is not different from a regular enzyme as shape is not important. d. can be restored by extreme temperatures or pH swings. 7 Fill in the blanks: Electrons are in an ionic bond, whereas they in a polar covalent bond, and are in a nonpolar covalent bond. Chomi
Biology Today and Tomorrow without Physiology (MindTap Course List)
5th Edition
ISBN:9781305117396
Author:Cecie Starr, Christine Evers, Lisa Starr
Publisher:Cecie Starr, Christine Evers, Lisa Starr
Chapter2: Molecules Of Life
Section: Chapter Questions
Problem 3FIO: Figure 2.12 A pH scale. Here, red dots signify hydrogen ions (H+) and blue dots signify hydroxyl...
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Transcribed Image Text:Jlans
29
Name
Date
Section
REVIEW
Check Your Recall
a neutral solution has a pH
Fill in the blanks: An acidic solution has a pH value of
value of
, and a basic (alkaline) solution has a pH value of
and its pH will
2 Adding hydrogen ions to a solution will make the solution more
a. acidic; increase
b. basic; increase
C. acidic; decrease
d. basic; decrease
3 What does a buffer do when hydrogen ions are added to a solution?
a. The buffer keeps the pH of a solution neutral.
b. The buffer releases base ions.
C. The buffer releases additional hydrogen ions.
d. The buffer binds the hydrogen ions to remove them from the solution.
4 Which of the following statements about chemical reactions is false?
a. The rate of a chemical reaction increases when temperature decreases.
b. A chemical reaction occurs when chemical bonds are formed, broken, or rearranged.
c. A chemical reaction occurs when electrons are transferred between molecules.
d. All of the above are true.
5 How does an enzyme affect the rate of a chemical reaction?
6An enzyme that has lost its shape
a. is denatured and no longer functional.
b. is denatured but still functional.
is not different from a regular enzyme as shape is not important.
d. can be restored by extreme temperatures or pH swings.
7 Fill in the blanks: Electrons are
in an ionic bond, whereas they
in a polar covalent bond, and
are
in a nonpolar covalent bond.
Chomi
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