A chemist divides a large sample of a mixture into three smaller portions. Each of these portions contains different ratios of the component substances that make up the mixture. Which description best fits the mixture?

Heterogeneous mixture

Explanation:

A mixture is a substance that is made up of different components that are not chemically combined. For example, the air is a mixture containing gaseous components. A pure substance, on the other hand, is a substance that contains similar particles. For example, an element is a pure substance with similar atoms and a compound is a pure substance with similar molecules. A mixture may either be homogeneous or heterogeneous. A homogeneous mixture contains various fractions of components in a single-phase while a heterogeneous mixture contains components in different phases and different ratios.