Respuesta :
The substance changes completely. It undergoes a chemical reaction.
Example is when you bake a cake. You cannot bring it bake to dough.
Example is when you bake a cake. You cannot bring it bake to dough.
When a pure substance undergoes chemical change, the pure substance changes in chemical composition.
What is a chemical change?
Chemical change is any change that involves the formation of new substances or products and it is not easily reversible.
A pure substance is any substance that has a definite chemical composition.
However, when a pure substance undergoes chemical change, the chemical composition of the substance is changed to form new products.
Learn more about chemical change at: https://brainly.com/question/23693316
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