Question

Which of the following is a heterogenous mixture?

A) a mixture in which the atoms or molecules are distributed unevenly

B) a mixture of more than one type of atom or molecule

C) a mixture of covalent and ionic compounds

D) a mixture of polar and nonpolar molecules

Answer 1

A heterogeneous mixture consists of two or more substances and is non-uniform. The correct answer is a mixture of polar and nonpolar molecules.

Step-by-step explanation:

A heterogeneous mixture is one that consists of two or more substances. It is non-uniform and the different components of the mixture can be seen. An example would be a mixture of sand and water.

A homogeneous mixture, on the other hand, is one that is uniform, and where the different components of the mixture cannot be seen. An example would be salt in water.

Based on the given options, the correct answer is D) a mixture of polar and nonpolar molecules. The different polar and nonpolar molecules in the mixture would not mix uniformly and would result in a non-uniform mixture.