PSCH2PropertiesofMatter

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What is density?

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Density is the mass of a substance divided by its volume, often expressed in grams per cubic centimeter (g/cm³).

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What is a physical change?

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A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition.

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What is a chemical change?

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A chemical change is a change that results in the formation of new chemical substances, involving a rearrangement of atoms.

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What is a homogeneous mixture?

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A homogeneous mixture is a mixture in which the composition is uniform throughout, and the individual components are not distinguishable.

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What is a heterogeneous mixture?

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A heterogeneous mixture is a mixture in which the composition is not uniform, and the individual components can be seen and separated.

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What is a compound?

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A compound is a substance formed when two or more elements are chemically bonded together in a fixed ratio.

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What is an element?

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An element is a pure substance that cannot be broken down into simpler substances by chemical means.

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What is a mixture?

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A mixture is a combination of two or more substances that are not chemically bonded and can be separated by physical means.

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What is the difference between a compound and a mixture?

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A compound is made of two or more elements chemically combined, while a mixture consists of two or more substances physically combined.

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What is solubility?

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Solubility is the ability of a substance to dissolve in a solvent, typically expressed in grams of solute per 100 grams of solvent.