A heterogeneous mixture ________
A)can only be separated into its components by chemical methods.
B)involves substances solely in the gas phase.
C)has non-uniform sample composition.
D)exclusively refers to substances in the same phase.
E)is also called a solution.

Question

Quizplus · Accepted Answer

A heterogeneous mixture is one in which the composition is not uniform throughout the sample. This means that different regions of the mixture may have different proportions of the substances that make it up. Such a mixture can be separated into its components by physical methods such as filtration, sedimentation, or centrifugation. Chemical methods, such as heating or exposing the mixture to a certain substance, would be used to separate the components only if they undergo a chemical change. Heterogeneous mixtures can have substances in different phases, including gas, liquid, and solid, which makes them different from homogeneous mixtures (solutions) that have the same composition of all components throughout the sample.

A Heterogeneous Mixture ________