physical vs chemical properties and changes

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What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition. Examples include melting, freezing, and dissolving.

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What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances. It involves a chemical reaction and changes the molecular structure of the substance. Examples include burning, rusting, and baking.

Front

What is a physical property?

Back

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, mass, volume, and density.

Front

What is a chemical property?

Back

A chemical property is a characteristic of a substance that becomes evident during a chemical reaction. It describes the substance's potential to undergo chemical changes. Examples include flammability and reactivity.

Front

Give an example of a physical change.

Back

An example of a physical change is a popsicle melting.

Front

Give an example of a chemical change.

Back

An example of a chemical change is baking a cake.

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What is NOT a chemical property?

Back

Temperature is NOT a chemical property; it is a physical property.

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What is flammability?

Back

Flammability is a chemical property that describes how easily a substance can catch fire and burn.

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What is reactivity?

Back

Reactivity is a chemical property that describes how a substance interacts with other substances, leading to chemical changes.

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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.