Explain that when substances are mixed and a new substance is formed, a chemical reaction has occurred. Demonstrate the production of a precipitate using magnesium sulfate (Epsom salt) and sodium ...

View the video below to see what you and your students will do in this lesson. Because substances are made up of different atoms and molecules, they react in characteristic ways. Production of a gas, ...

Chemical reactions can be represented using equations. Compounds are chemical substances ... into new compound molecules. For example, if carbon atoms react with oxygen atoms they form carbon ...