Physical and Chemical Changes in Matter

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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.

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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 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.

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What is a saturated solution?

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A saturated solution is a solution in which no more solute can dissolve at a given temperature.

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What is an unsaturated solution?

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An unsaturated solution is a solution that can still dissolve more solute at a given temperature.

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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 solution?

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A solution is a homogeneous mixture of two or more substances, where one substance (the solute) is dissolved in another (the solvent).

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What is the law of conservation of mass?

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The law of conservation of mass states that mass is neither created nor destroyed in a chemical reaction.

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What is an example of a physical change?

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An example of a physical change is melting ice into water.