Chemical/Physical Properties & Changes

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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. Examples include freezing, melting, and dissolving.

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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. It involves a chemical reaction and changes the chemical composition of the substance. Examples include baking, rusting, and burning.

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Is freezing juice a physical or chemical change?

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Freezing juice is a physical change.

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Is melting butter for popcorn a physical or chemical change?

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Melting butter for popcorn is a physical change.

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What happens during a chemical change?

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During a chemical change, the substances involved undergo a chemical reaction, resulting in the formation of new substances with different properties.

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What is a chemical property?

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A chemical property is a characteristic of a substance that can only be observed during a chemical reaction. Examples include reactivity with acids, flammability, and oxidation states.

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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 the substance's chemical identity. Examples include color, melting point, and density.

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Is sour taste a chemical or physical property?

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Sour taste is a physical property.

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What does it mean if a substance reacts with acid?

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If a substance reacts with acid, it indicates a chemical property, as it involves a chemical reaction that produces new substances.

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What is an example of a physical change?

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