Multiple Choice
You hypothesize that a tablet of PEPCID AC can neutralize more stomach acid than a tablet of Alka-Seltzer. If you placed a tablet of each antacid in a beaker of acid at an initial pH of 2, which of the following experimental results would support your hypothesis?
A) After 1 hour, the pH of the solution in the PEPCID AC beaker was 9.2 and the pH of the solution in the Alka-Seltzer beaker was 8.3.
B) After 1 hour, the pH of the solution in the PEPCID AC beaker was 7.9 and the pH of the solution in the Alka-Seltzer beaker was 9.6.
C) After 1 hour, the pH of the solution in the PEPCID AC beaker was equal to that of the pH of the solution in the Alka-Seltzer beaker.
D) It took 3 minutes for the PEPCID AC tablet to fully dissolve, and it took 5 minutes for the Alka-Seltzer tablet to fully dissolve.
Correct Answer:

Verified
Correct Answer:
Verified
Q4: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB6039/.jpg" alt=" Thin-layer
Q5: The sodium atom contains 11 electrons, 11
Q6: A diabetic, who does not utilize insulin
Q7: The figure below shows five water molecules.
Q8: The body uses atoms in different ways
Q10: In the equation 2 H<sub>2</sub> + O<sub>2</sub>
Q11: An uncharged atom of boron has an
Q12: Uranium is a metallic element that is
Q13: A buffer<br>A) is an acid that is
Q14: The hydrogen atoms of a water molecule