1. Which of these statements correctly describes a mixture? A mixture is
A. composed of different substances.
B. made up of different elements and compounds.
C. composed of two or more substances that are chemically combined.
D. consists of two or more substances that are physically combined.
2. You mix the oil and water. Which statement best describes heterogeneous mixture?
A. The mixture is completely mixed.
B. You cannot see the oil in the mixture,
C. The liquids did not mix but formed two layers.
D. The mixture became a solution.​