Chemical Reactions And Equations G10

What is common between the burning of a matchstick and rusting of an iron nail? In both cases, a new substance is formed. The burned matchstick turns to ashes and smoke, while the iron forms a red patch over it. This change is irreversible, meaning that none of the previous substance can be brought back to its original form. This is an example of a chemical change. Humans are surrounded by examples of chemical reaction. To make things easy to understand Science makes use of chemical equations. Want to learn more? Watch our videos.