Difference Between Homogeneous Mixture vs. Heterogeneous Mixture

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Main Difference

Mixture is basically a combination of two or more than two pure substances, each substance retains its own chemical properties. A mixture can be homogenous which has uniform composition or heterogeneous which has non-uniform composition. A homogenous mixture is a mixture where all substance are of same nature and consists of similar parts. Heterogeneous mixtures are made up of two or more totally different substances.

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Homogeneous Mixture vs. Heterogeneous Mixture

A mixture is the combination of two or more pure substance in such a way that they are not chemically united. The each pure substance getting into make the mixture have an influence on the mixture as it shows on the type of properties. For instance, with making a mixture of sugar and water, the solution made will be sweet in taste due to the presence of sugar, which has the property of sweetness. When the mixtures are made, they can mainly be of two types; homogeneous mixture and heterogeneous mixture. The homogeneous mixture is the combination of two or more pure substance in such a uniform manner that each of the substance is indistinguishable from the other substance. The homogeneous mixture is only in the one phase of matter. On the other hand, the pure substances in the heterogeneous mixture are not uniformly distributed, and it results in the formation of non-uniform composition. The constitutes in the heterogeneous mixture are distinguishable, and it always exists in two or more than two phases of matter.

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Homogenous mixtures are made up of uniform composition where particles are distributes equally while heterogeneous mixtures are made up of non-uniform composition where particles are not distributed equally. The substances dissolved in a homogenous mixture are not easily identifiable while in heterogeneous mixture the substances are easily identifiable. The substances dissolved in homogenous mixture cannot be easily separated where as in heterogeneous mixture the substances can be easily separated through chemical or physical means. Homogenous mixture are known as solutions while heterogeneous mixtures are termed as suspension or colloid. In Homogenous mixtures the substances dissolved do not maintain their own individual properties while in heterogeneous mixtures the substances maintains their own individual properties.

Comparison Chart

BasisHomogeneous MixtureHeterogeneous Mixture
DefinitionThe homogeneous mixture is the combination of two or more pure substance in such a uniform manner that each of the substance is indistinguishable from the other substance.The pure substances in the heterogeneous mixture are not uniformly distributed, and it results in the formation of non-uniform composition.
Distribution of SubstancesIn a homogeneous mixture, constitutes are distributed equally and uniformly.In the heterogeneous mixture, constitutes are distributed unequally.
Separation of SubstancesThe pure substances in the homogeneous mixtures require physical or mechanical process like filtration, distillation, crystallization, and sifting for separating them from each other.The pure substances in a heterogeneous mixture can be easily separated without using such processes.
Phase of MatterThe homogeneous mixture is only in the one phase of matter.The heterogeneous mixture is always in two or more than two different phases of matter.
ExamplesWhen we mix alcohol in water, it exists in the uniform physical state.When we mix the particles of sand and sodium chloride, they will not be in that uniform state and could be separable from one and another.
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What is Homogeneous Mixture?

In the homogeneous mixture, the pure substances are distributed uniformly in such a way that the final composition of the mixture is in one phase of matter. The constituents or substances can’t be differentiable from each other in the homogeneous mixture. This type of mixture is made up of the uniform composition in which the particles of different pure substances are distributed equally and uniformly. When we see the homogeneous mixture, it doesn’t seem to be the combination of two or more substances as it is in the uniform state. For instance, when we mix alcohol in water, it exists in the uniform physical state that they cannot be separated from one and other without applying the physical or mechanical processes like filtration, distillation, crystallization, and sifting. The other example of a homogeneous mixture is the uniform mixture in between water and sugar. When both these pure substances are mixed, they make a uniform solution that is only present in the liquid form.

What is Heterogeneous Mixture?

In the heterogeneous mixture, the pure substances are not uniformly distributed, and it results in the formation of non-uniform composition. This type of mixture is always in two or more than two phases of matter. The particles or constitutes in the heterogeneous mixture are easily identifiable and separable as they exist in two different phases of matter. Suspensions or colloids are the prominent examples of heterogeneous mixtures. The suspension has small particles of solute that can be easily identified by the naked eye. The constitutes are not mixed in uniform proportion, which results in the formation of such mixtures. For instance, if we mix the particles of sand and sodium chloride, they will not be in that uniform state and could be separable from one and another without using any physical or mechanical process.

Key Differences

  1. The homogeneous mixture is the combination of two or more pure substance in such a uniform manner that each of the substance is indistinguishable from the other substance, whereas the pure substances in the heterogeneous mixture are not uniformly distributed, and it results in the formation of non-uniform composition.
  2. In a homogeneous mixture, constitutes are distributed equally and uniformly, whereas in heterogeneous mixture constitutes are distributed unequally.
  3. The pure substances in the homogeneous mixtures require physical or mechanical process like filtration, distillation, crystallization, and sifting for separating them from each other, whereas, the pure substances in a heterogeneous mixture can be easily separated without using such processes.
  4. The homogeneous mixture is only in the one phase of matter, whereas heterogeneous mixture is always in two or more than two different phases of matter.
  5. Solutions are termed as the homogeneous mixtures, on the other hand, suspensions or colloids are termed as the heterogeneous mixtures.

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