Chemical and Physical Properties

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What is a physical property?

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A characteristic of a substance that can be observed without changing its chemical composition.

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What is a chemical property?

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A characteristic of a substance that can only be observed during a chemical reaction, resulting in the formation of a new substance.

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Can physical properties be observed during a chemical reaction?

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No, physical properties can be observed without a chemical reaction.

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What happens to substances during a chemical reaction?

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They undergo a transformation that results in the formation of new substances with different properties.

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What is an example of a chemical property?

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Combustion, which involves a substance reacting with oxygen to produce heat and light.

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What is an example of a physical property?

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Color, melting point, boiling point, and density are examples of physical properties.

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How can chemical properties be recognized?

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They can only be recognized when substances react or do not react chemically with one another.

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What is the difference between physical and chemical properties?

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Physical properties can be observed without changing the substance, while chemical properties can only be observed during a chemical reaction.

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What is combustion?

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A chemical reaction that occurs when a substance reacts with oxygen, producing heat and light.

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What is the significance of observing chemical properties?

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Observing chemical properties helps to identify substances and predict their behavior in reactions.