Question

5. Mixing cream and sugar is an example of a ________________ change. The weight of the mixture _____________ during the course of reaction.
6. Chemical reactions change the ________________ of a substance.

Answer 1

5. Mixing cream and sugar is an example of a **physical** change. The weight of the mixture **remains the same** during the course of the reaction.

6. Chemical reactions change the **composition** of a substance.