Physical & Chemical Properties

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What is the definition of 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.

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What is the definition of a chemical property?

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A chemical property is a characteristic of a substance that becomes evident during a chemical reaction; it describes the substance's ability to undergo changes that transform it into different substances.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

Give an example of a physical property.

Back

Examples of physical properties include color, melting point, boiling point, density, and electrical conductivity.

Front

Give an example of a chemical property.

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Examples of chemical properties include reactivity with acids, flammability, and oxidation states.

Tags

NGSS.HS-PS1-1

Front

What does it mean if a substance is flammable?

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If a substance is flammable, it means it can easily ignite and burn in the presence of an ignition source.

Front

What is oxidation in terms of chemical properties?

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Oxidation is a chemical property that refers to the process of a substance reacting with oxygen, often resulting in the formation of oxides.

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How does electrical conductivity relate to physical properties?

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Electrical conductivity is a physical property that measures a substance's ability to conduct an electric current.

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What is the significance of reactivity with oxygen?

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Reactivity with oxygen is a chemical property that indicates how a substance interacts with oxygen, which can lead to combustion or oxidation.

Tags

NGSS.HS-PS1-1

Front

What is the difference between a physical change and a chemical change?

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A physical change alters the form or appearance of a substance without changing its chemical composition, while a chemical change results in the formation of new substances with different properties.

Tags

NGSS.MS-PS1-5

Front

What is an example of a physical change?

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Examples of physical changes include melting ice, boiling water, and dissolving sugar in water.

Tags

NGSS.5-PS1-4