Classification of Matter

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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 and separated. Example: Chicken soup.

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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. The individual components are not distinguishable. Example: Sweet tea.

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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 (O) and Carbon (C).

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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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What is a solution?

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A solution is a homogeneous mixture where one substance (solute) is dissolved in another (solvent). Example: Saltwater.

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What is a colloid?

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A colloid is a mixture where tiny particles of one substance are dispersed throughout another substance but do not settle out. Example: Milk.

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What distinguishes a mixture from 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 that cannot be separated by physical means.

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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 and appearance, while a heterogeneous mixture has distinct, separate components.

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What is the significance of the chemical formula?

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A chemical formula represents the elements in a compound and their proportions. Example: H2O indicates 2 hydrogen atoms and 1 oxygen atom.

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What is the role of solutes and solvents in a solution?

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In a solution, the solute is the substance that is dissolved, and the solvent is the substance that does the dissolving.