A chemical compound is a chemical substance consisting of two or more different chemically bonded chemical elements, with a fixed ratio determining the composition. The ratio of each element is ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

Scientists don’t know the limits of chemical space—the collection of all possible molecules—but a new analysis concludes chemists have discovered new compounds in that space at an exponential rate ...