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What is a mixture?

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A mixture is a combination of two or more substances that are not chemically bonded. Mixtures can be separated by physical means.

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What is a heterogeneous mixture?

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A heterogeneous mixture is a type of mixture where the components are not uniformly distributed, and different parts can be seen. Example: Italian salad dressing.

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What is a homogeneous mixture?

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A homogeneous mixture is a mixture in which the composition is uniform throughout. Example: Saltwater.

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What is a pure substance?

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A pure substance is a material that has a constant composition and consistent properties throughout. It can be an element or a compound.

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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. Example: Oxygen.

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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. Example: Water (H2O).

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How can mixtures be separated?

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Mixtures can be separated by physical means such as filtration, distillation, or centrifugation.

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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 can be separated, while a compound is a chemical combination of elements that cannot be separated by physical means.

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What is an example of a heterogeneous mixture?

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An example of a heterogeneous mixture is a salad, where different ingredients can be seen and separated.

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What is an example of a homogeneous mixture?

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An example of a homogeneous mixture is air, which has a uniform composition.