Which statement describes a mixture of sand and water at room temperature?

August 2019 NY Regents Chemistry Exam

16 Which statement describes a mixture of sand and water at room temperature?

(1) It is heterogeneous, and its components are in the same phase.

(2) It is heterogeneous, and its components are in different phases.

(3) It is homogeneous, and its components are in the same phase.

(4) It is homogeneous, and its components are in different phases.

Solution: A homogenous mixture has uniform composition such as salt water. A heterogeneous mixture is not uniform. Moreover, sand is solid while water is liquid.

Answer: 2

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