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 ...

Warner-Lambert, whose motto was "Making the World Feel Better," marketed Rolaids, an over-the-counter antacid that was first available in 1954. Rolaids was only one of several available antacids on ...