Chemical Reactions: A chemical reaction is a process where the substances 8unbdergo a change in their chemical composition. The substances that enter the reaction are called reactants that are then ...

Calcium carbonate is a chemical found in eggshells, seashells, and many other materials. Observe how calcium carbonate reacts with common liquids. A Plaster Master or a Plaster Disaster Plaster is ...

Understanding the differences between physical and chemical changes is the basics in the study of chemistry. These two types of transformations describe how substances can change in terms of their ...

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 ...