Pepto-Bismol (bismuth subsalicylate) and Tums (calcium carbonate ... Benefits of Pepto-Bismol include that it is: Widely available without a prescription. Relatively inexpensive and has generic ...

Calcium carbonate is in eggshells, seashells, a rock called marble, and in antacid tablets like Tums and Rolaids. In this activity, you can use a common liquid to detect calcium carbonate! Cover your ...