Classification of Matter

Front

What is a heterogeneous mixture?

Back

A mixture that consists of visibly different substances or phases. Examples include salad, chicken soup, and fruit salad.

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What is a homogeneous mixture?

Back

A mixture that is the same throughout, where the components are evenly distributed. Examples include saltwater and air.

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What is a compound?

Back

A substance made from two or more elements that are chemically bonded in a constant ratio. Examples include water (H2O) and carbon dioxide (CO2).

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What is an element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means. Examples include oxygen (O), gold (Au), and hydrogen (H).

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How can you identify a heterogeneous mixture?

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By observing that the mixture has distinct, separate parts that can be seen and easily distinguished.

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How can you identify a homogeneous mixture?

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By observing that the mixture appears uniform and consistent throughout, with no visible differences.

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What is the difference between a mixture and a compound?

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A mixture is a physical combination of two or more substances that retain their individual properties, while a compound is a chemical combination of two or more elements that results in a new substance.

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What is an example of a heterogeneous mixture?

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Examples include a chocolate chip cookie, fruit salad, and a bowl of cereal.

Front

What is an example of a homogeneous mixture?

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Examples include vinegar, air, and a solution of sugar in water.

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What does it mean for a mixture to be uniform?

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It means that the composition is consistent throughout the entire mixture, with no visible differences.