Classification of Matter Flashcard

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What is a substance?

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A substance is a form of matter that has a uniform and definite composition. Examples include elements and compounds.

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What is a mixture?

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A mixture is a combination of two or more substances that retain their individual properties. Examples include air and salad.

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What is an element?

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An element is a pure substance that cannot be broken down into simpler substances by chemical means. Examples include hydrogen (H) and iron (Fe).

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What is a compound?

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A compound is a substance formed when two or more elements are chemically bonded together. Examples include water (H2O) and baking soda (NaHCO3).

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What is a homogeneous mixture?

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A homogeneous mixture is a mixture that has a uniform composition throughout. Examples include saltwater and air.

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What is a heterogeneous mixture?

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A heterogeneous mixture is a mixture that does not have a uniform composition and the individual components can be seen. Examples include salad and chunky salsa.

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What is the difference between a homogeneous and heterogeneous mixture?

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A homogeneous mixture has a uniform composition, while a heterogeneous mixture has a non-uniform composition with distinct parts.

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What is an example of a homogeneous mixture?

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An example of a homogeneous mixture is vinegar.

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What is an example of a heterogeneous mixture?

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An example of a heterogeneous mixture is a bowl of cereal with milk.

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What is the classification of baking soda (CaCO3)?

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Baking soda (CaCO3) is classified as a substance.