When placed in a solution, HNO₃ dissociates into H+ and NO₃-. The compound HNO3 must be a(n) ________.
A) base.
B) nucleotide.
C) acid.
D) electron.
Correct Answer:
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Q35: The atomic weight of an element whose
Q36: Which of the following is(are)ionizing radiation?
A)Cosmic radiation
Q37: Isotopes of an element have
A)the same atomic
Q38: Which of the following best describes the
Q39: The difference in hydrogen ion concentration between
Q41: Proteins
A)are structural materials.
B)can function as enzymes.
C)contain C,
Q42: Nucleic acids are
A)very small, simple molecules.
B)structural molecules
Q43: On the pH scale
A)a tenfold difference in
Q44: Which of the following is not organic?
A)Sodium
Q45: The following reaction occurs: HBr + NaOH
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