Classification of Matter

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What is a heterogeneous mixture?

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A mixture where the components are not uniformly distributed and can be easily identified, such as Italian salad dressing or chicken soup.

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What is a homogeneous mixture?

Back

A mixture that has a uniform composition throughout, where the individual components are not easily distinguishable, such as saltwater.

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What is a pure substance?

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A material that has a constant composition and consistent properties throughout, such as elements and compounds.

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What is a compound?

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A substance formed when two or more elements are chemically bonded together, such as water (H2O) or carbon dioxide (CO2).

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What is an element?

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A pure substance that cannot be broken down into simpler substances by chemical means, such as carbon, oxygen, or gold.

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What is a mixture?

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A combination of two or more substances that can be separated by physical processes, such as a salad or air.

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What is a solution?

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A homogeneous mixture where one substance (solute) is dissolved in another (solvent), such as sugar in water.

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What is a colloid?

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A mixture where tiny particles of one substance are evenly distributed throughout another substance, such as milk or fog.

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What is a suspension?

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A heterogeneous mixture where solid particles are suspended in a liquid but can settle over time, such as muddy water.

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How can mixtures be separated?

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Mixtures can be separated by physical processes such as filtration, distillation, or evaporation.