Elements, Compounds and Mixtures

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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, meaning that the individual components are not distinguishable. An example is salt dissolved in water.

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What is a heterogeneous mixture?

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A heterogeneous mixture is a mixture that has visibly distinguishable components. An example is trail mix.

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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 oxygen (O) and argon (Ar).

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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. An example is water (H2O), which is made of hydrogen and oxygen.

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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. The components can be separated by physical means.

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What is a solution?

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A solution is a homogeneous mixture where one substance (the solute) is dissolved in another (the solvent). An example is sugar dissolved in water.

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What is the difference between a compound and a mixture?

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A compound is a substance formed from two or more elements chemically bonded together, while a mixture is a combination of substances that retain their individual properties.

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What is a colloid?

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A colloid is a type of mixture where very small particles of one substance are dispersed throughout another substance. Examples include milk and fog.

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What is the state of matter represented by single argon atoms?

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Element.

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What is the state of matter represented by double oxygen atoms?

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Element.