Properties and Changes in Matter

Front

What is a physical property?

Back

A characteristic of a substance that can be observed or measured without changing its identity, such as color, odor, or melting point.

Front

What is a chemical property?

Back

A characteristic that describes how a substance interacts with other substances, indicating its potential to undergo a chemical change.

Front

What is a physical change?

Back

A change that affects one or more physical properties of a substance without altering its chemical composition, such as melting or boiling.

Front

What is a chemical change?

Back

A change that results in the formation of new chemical substances, often indicated by color change, gas production, or odor.

Front

What is solubility?

Back

The ability of a substance to dissolve in a solvent, forming a solution.

Front

What is an example of a physical change?

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Melting ice into water.

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What is an example of a chemical change?

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Burning wood, which produces ash and smoke.

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What indicates a chemical reaction has occurred?

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Signs include color change, gas production, temperature change, and the formation of a precipitate.

Front

What is the boiling point of water?

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100 degrees Celsius (212 degrees Fahrenheit) at standard atmospheric pressure.

Front

What is the difference between a physical and chemical property?

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Physical properties can be observed without changing the substance, while chemical properties describe how a substance reacts with others.