Why can a solution be classified as a mixture?
a. it is made up of only one substance
b. both are made up of two substances that are not chemically combined
c. both are always homogeneous
d. both are made up of two substances that are chemically combined

A solution will be classified as a mixture if it is made up of 2 substances that are not chemically combined together.

More specifically, a solution made by mixing 2 solutions together but with each component solution maintaining their individual identity would be termed a mixture.

Mixtures could be homogenous if the two components are in the same phase or heterogenous if the two components are in different phases. As long as the two component solutions do not react together to form new products, the solution would remain a mixture.

Mixtures can be separated using relevant separation techniques such as evaporation, distillation, etc.

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B. Both are made up of two substances that are not chemically combined

Explanation:

Mixture is a substance which has two or more components which do not combine chemically and do not have any fixed ratio in which they are present.

Heterogeneous mixtures  : It is a mixture that has non-uniform composition throughout the solution and the particle size or shapes are also different.There is a physical boundary between the dispersed phase and dispersion medium.

Homogeneous mixtures  : It is a mixture that has uniform composition throughout the solution and the particle size or shapes are not different.There is no physical boundary between the dispersed phase and dispersion medium.

Solution is a mixture made up of solute and solvent which do not combine chemically. They can be homogeneous or heterogeneous.

Thus a solution be classified as a mixture as both are made up of two substances that are not chemically combined

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