A 0.01 M solution of a substance has a pH of 2. What can you conclude about this substance?
A) It is a strong acid that dissociates completely in water.
B) It is a strong base that dissociates completely in water.
C) It is a weak acid.
D) It is a weak base.
A
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The A, P, and E sites are progressively occupied by amino acids being assembled into a polypeptide. These sites are part of
A. DNA. B. the large ribosomal subunit. C. mRNA. D. tRNA. E. the spliceosome.
Which statement concerning radioisotope 14C is
false? a. It can be substituted for 12C in glucose and the body will still be able to use the compound. b. It has a different number of protons than 12C. c. It has more neutrons than 12C. d. It behaves the same chemically as 12C. e. It has six carbons and eight neutrons.
What are plant cells:
Tendons and ligaments are composed of ________.
Fill in the blank(s) with the appropriate word(s).