Homogeneous & Heterogeneous Mixtures

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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. Examples include salt water and air.

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What is a heterogeneous mixture?

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A heterogeneous mixture is a mixture in which the composition is not uniform throughout. Examples include salad and sand.

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What is a solvent?

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A solvent is a substance that dissolves a solute, resulting in a solution. In salt water, water is the solvent.

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What is a solute?

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A solute is a substance that is dissolved in a solvent to form a solution. In lemonade, the lemonade powder is the solute.

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What are molecules?

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Molecules are groups of two or more atoms bonded together. They are the smallest units of a chemical compound.

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What is the difference between pure substances and mixtures?

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Pure substances cannot be separated physically, while mixtures can be separated physically.

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Can mixtures be homogeneous or heterogeneous?

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Yes, mixtures can be classified as homogeneous (uniform composition) or heterogeneous (non-uniform composition).

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What is an example of a homogeneous mixture?

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An example of a homogeneous mixture is coffee, where the components are evenly distributed.

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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, where the components can be seen and separated.

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What happens when you mix a solute and a solvent?

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When you mix a solute and a solvent, the solute dissolves in the solvent, forming a solution.