Elements, compounds, mixtures, particle diagrams

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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. It consists of only one type of atom.

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What is a compound?

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A compound is a substance formed when two or more elements chemically bond together in fixed proportions.

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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 and can be separated by physical means.

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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.

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What is a particle diagram?

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A particle diagram visually represents the arrangement and behavior of particles in a substance, showing how they interact in elements, compounds, and mixtures.

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How do you classify a mixture of compounds?

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A mixture of compounds contains two or more different compounds that are not chemically bonded, and can be separated by physical methods.

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What distinguishes a pure substance from a mixture?

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A pure substance has a uniform and definite composition, while a mixture contains two or more substances that retain their individual properties.

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What is the difference between a mixture of elements and a mixture of compounds?

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A mixture of elements contains two or more different elements, while a mixture of compounds contains two or more different compounds.

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How can you identify a compound in a beaker?

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A compound in a beaker will show uniform properties and cannot be separated into its components by physical means.

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What is an example of a pure substance?

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Examples of pure substances include distilled water (H2O) and gold (Au).