Mixtures and Pure substances

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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 easily. Example: Chicken noodle soup.

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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 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).

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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 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 the difference between a mixture and a pure substance?

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

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What is an example of a mixture of elements and compounds?

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An example of a mixture of elements and compounds is air, which contains nitrogen (element) and carbon dioxide (compound).

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What is laundry detergent classified as?

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Laundry detergent is classified as a mixture because it contains various chemical compounds that work together to clean clothes.

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How can you identify a heterogeneous mixture?

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A heterogeneous mixture can be identified by the presence of visibly different substances or phases within the mixture.

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What is the classification of water?

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Water is classified as a compound because it is made up of two hydrogen atoms and one oxygen atom chemically bonded together.