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BIO 1 - PH, Acids, Bases, Buffers
Test Description: BIO 1
Instructions: Answer all questions to get your test result.
1) The pH scale measures the concentration of
A
hydrogen (H+) ions in solution
B
hydroxide (OH-) in solution
2) A solution that is an acid will have a pH
A
more than 7
B
less than 7
C
equal to 7
3) A solution that is a base will have a pH
A
more than 7
B
less than 7
C
equal to 7
4) An acid is any compound that releases ______ in solution.
A
hydrogen (H+) ions
B
hydroxide (OH-) ions
5) A base is any compound that releases _________ in solution.
A
hydrogen (H+) ions
B
hydroxide (OH-) ions
6) A base has more ________ than _________ is solution.
A
hydroxide (OH-) ions, hydrogen (H+) ions
B
hydrogen (H+) ions, hydroxide (OH-) ions
7) The lower the pH the more _________ in solution.
A
hydrogen (H+) ions
B
hydroxide (OH-) ions
8) An acid has more _______ than _______ in solution.
A
hydrogen (H+) ions, hydroxide (OH-) ions
B
hydroxide (OH-) ions, hydrogen (H+) ions
9) The higher the pH the more _________ in solution.
A
hydroxide (OH-) ions
B
hydrogen (H+) ions
10) A biological substance that resists sudden changes in pH is a(n)
A
buffer
B
acid
C
base
*select an answer for all questions
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