A television advertisement claimed that the antacid Maalox neutralizes stomach
acid faster and therefore relieves heartburn faster than Pepcid AC, a drug that
inhibits the release of stomach acid. To illustrate this claim, two flasks of acid
were shown. In one, Maalox rapidly neutralized the acid. In the other, Pepcid AC
did not neutralize the acid. Explain why this is not valid comparison.