Answer:
A chemical change happens when one chemical substance is transformed into one or more different substances, such as when iron becomes rust.
Explanation:
Chemical changes occur through the process of chemical reactions, and the resulting substances have different properties because their atoms and molecules are arranged differently.
some examples are:
-Burning wood.
-Souring milk.
-Mixing acid and base.
-Digesting food.
-Cooking an egg.
-Heating sugar to form caramel.
-Baking a cake.
-Rusting of iron.
