Elements, Compounds or Mixtures

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What is a heterogeneous mixture?

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A mixture that consists of visibly different substances or phases. Examples include salad and pizza.

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What is a homogeneous mixture?

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

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What is a pure substance?

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A material that has a constant composition and properties throughout. Examples include elements and compounds.

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What is an element?

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A pure substance that cannot be broken down into simpler substances by chemical means. Examples include hydrogen and oxygen.

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What is a compound?

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A substance formed when two or more elements are chemically bonded together. Examples include water (H2O) and carbon dioxide (CO2).

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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 substances that retain their individual properties, while a compound is a chemical combination of substances that results in new properties.

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What is the Periodic Table?

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A tabular arrangement of all known chemical elements, organized by increasing atomic number.

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Is milk a homogeneous or heterogeneous mixture?

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Homogeneous mixture.

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Is Kool-Aid a homogeneous or heterogeneous mixture?

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Homogeneous mixture.

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What type of mixture is pizza?

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Heterogeneous mixture.