Here's a breakdown:
* Reactants: These are the substances that are combined or changed in a chemical reaction. They appear on the left side of the equation.
* Products: These are the substances that are formed as a result of the chemical reaction. They appear on the right side of the equation.
For example, in the reaction:
2H₂ + O₂ → 2H₂O
* Reactants: Hydrogen (H₂) and Oxygen (O₂)
* Products: Water (H₂O)