This month we feature chemicals that have important applications in industry and the lab.—Ed. Calcium carbonate (CaCO 3) is a natural product found in many settings, including the minerals aragonite 1 ...

When elements combine or join together new substances are formed. These substances are called compounds. This is shown in the diagram below There are millions of different compounds and all of them ...

You’ve probably heard of the chemical calcium in milk. But calcium shows up in lots of other stuff too. For example, the hard part of your bones and teeth is made from calcium connected to a chemical ...