One of the main ingredients in a common antacid is sodium bicarbonate. Which of the following best explains the antacid properties of this ingredient?
A. NaHCO3 (sodium bicarbonate) dissociates into Na+ + HCO3-. Then, HCO3- breaks down into H+, CO2, and C.
B. NaHCO3 (sodium bicarbonate) dissociates into Na+ and H2CO3. Then, H2CO3 breaks down into H+ and HCO3-.
C. The bicarbonate of sodium bicarbonate binds to hydrogen atoms in the environment of the stomach and raises the pH while neutralizing acid.
D. The sodium of sodium bicarbonate binds to OH- in the environment of the stomach and raises the pH, neutralizing acid.
Answer: C
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