Teacher Notes:
			
			
			 
			
			Recording how elements and compounds react is called a chemical 
			equation.  However, it is 
			important to really understand the formula of the different 
			compounds that are used in the reaction. 
			This chapter looks in more detail at the development of the 
			chemical formula and allows the students to create models to help 
			them visualize the different compounds.
			
			
			
			
			 
			
			We will be highlighting hydrocarbons because they are important to our 
			everyday life from plastics to gasoline.