* Chemical change refers to the process: A chemical change is a process where new substances are formed with different chemical properties. It's a transformation, not a substance.
* Reactants are ingredients: Reactants are the starting materials in a chemical reaction. They are the substances that undergo the chemical change.
* Chemical change happens to reactants: The chemical change happens *to* the reactants, causing them to form products.
Think of it like this:
* Baking a cake: The flour, sugar, eggs, and butter (reactants) are the ingredients. The process of baking (chemical change) transforms them into a cake (products).
* Rusting: Iron (reactant) reacts with oxygen (reactant) in the presence of water (catalyst) to form rust (product).
Therefore, a reactant itself is not a chemical change, but it is a substance that undergoes a chemical change.
