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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, such as color, smell, or boiling point.

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What is a chemical reaction?

Back

A process in which atoms rearrange to form new substances, involving the breaking and forming of chemical bonds.

Front

What does it mean to rearrange?

Back

To change the order or position of something.

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

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A physical change affects one or more physical properties of a substance without altering its chemical composition, while a chemical change results in the formation of new substances.

Front

What are reactants in a chemical reaction?

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The starting substances that undergo change during a chemical reaction.

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What are products in a chemical reaction?

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The new substances formed as a result of a chemical reaction.

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What is the law of conservation of mass?

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In a chemical reaction, mass is neither created nor destroyed; it is conserved.

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What is an example of a physical property?

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

Front

What is an example of a chemical reaction?

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Burning wood, rusting iron, and baking a cake are examples of chemical reactions.

Front

What is a chemical equation?

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A symbolic representation of a chemical reaction, showing the reactants and products along with their quantities.