Pure Substances and Mixtures Flashcard

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What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture in which the components are evenly distributed and cannot be easily distinguished from one another.

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What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture where the components are not evenly distributed and can be easily distinguished.

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What is a pure substance?

Back

A pure substance is a material that has a constant composition and cannot be separated into simpler substances by physical means.

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What is a solution?

Back

A solution is a homogeneous mixture where one substance (the solute) is dissolved in another (the solvent).

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What is a suspension?

Back

A suspension is a heterogeneous mixture in which solid particles are dispersed in a liquid but can settle over time.

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What are gas particles like?

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Gas particles are spread apart, moving fast, and can change volume easily.

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What is a physical property?

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A physical property is a characteristic of a substance that can be observed or measured without changing its identity.

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Can a pure substance be broken down using physical methods?

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No, a pure substance cannot be broken down into simpler matter using physical methods.

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What is kinetic energy?

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Kinetic energy is the energy of motion.

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What is temperature?

Back

Temperature is a measure of the average kinetic energy of the particles in a substance.