Physical and Chemical Properties and Changes

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What is combustibility?

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Combustibility is a chemical property that describes the ability of a substance to catch fire and burn.

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What are physical properties?

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Physical properties are characteristics of a substance that can be observed or measured without changing its chemical identity.

Front

What defines a chemical change?

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A chemical change is a process where a substance undergoes a transformation that affects its chemical properties, resulting in the formation of a new substance.

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What are examples of chemical properties?

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Examples of chemical properties include toxicity, flammability, combustibility, and radioactivity.

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What is an example of a chemical change?

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An example of a chemical change is the explosion of fireworks, which involves a chemical reaction that produces new substances.

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How do physical changes differ from chemical changes?

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Physical changes do not alter the chemical identity of a substance, while chemical changes result in the formation of new substances.

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What is the significance of observing physical properties?

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Observing physical properties helps in identifying and characterizing substances without altering their chemical structure.

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Can you give an example of a physical property?

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An example of a physical property is the boiling point of water, which can be measured without changing the water's chemical identity.

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What role do chemical properties play in safety?

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Chemical properties help determine the hazards associated with a substance, such as its flammability or toxicity, which is crucial for safety measures.

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What happens during a chemical reaction?

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During a chemical reaction, reactants undergo a transformation to form products, resulting in changes to their chemical properties.