1. Chemical Reaction Terminology
In chemical reactions there are reactants and products.
Reactants are the chemicals that react together to form a product.
Reactants are on the left side of a chemical equation.
A + B  AB

2. Chemical Reaction Terminology
Products are the chemicals formed in a chemical reaction.
Products are on the right side of the chemical reaction equation.
A + B  AB

3. Chemical Reaction Terminology
So, what’s the arrow in the middle of the equation?
A + B  AB
The arrow represents what happens when A runs into B. It is the chemical reaction.

4. Chemical Reaction Terminology
Making cookies is a lot like a chemical reaction.
When you make cookies what are the reactants?
What are the products?
And what is the reaction, how do you make them? (i.e. what does the arrow represent?)

5. Chemical Reaction Terminology
Reactants: flour, sugar, butter, chocolate chips, etc.
Products: cookies.
The reaction (the arrow): mixing, and stirring, and baking.
Flour + Sugar + Butter + Chocolate Chips Cookies
Mixing
Stirring
Baking

6. What are Chemical Reactions?
A chemical reaction is a process in which at least one new substance is produced as a result of a chemical change.