1. What is a mixture?


A. Mixture is a combination of at least two substances às such that there is chemical reaction occurs.

B. Mixture is a combination of at least two substances in which new material is formed when these substances combined.

C. Mixture is a combination of at least two substances in such a way that no chemical reaction occurs.

D. Mixture is a combination of at least two substances in which the identities of each substances are changed.​