MIDTERM REVIEW 1: Vocabulary, Mixtures,Physical/Chemical Changes

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What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture that has a uniform composition throughout, meaning that the individual components are not distinguishable. An example is a solution.

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What is another name for a homogeneous mixture?

Back

Solution.

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What is a physical change?

Back

A physical change is a change that affects one or more physical properties of a substance without altering its chemical composition. Examples include cutting, folding, or melting.

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What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances. An example is a nail rusting.

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What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture in which the components are not uniformly distributed and can be easily distinguished. An example is a salad.

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What is a solution?

Back

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

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What is the difference between a physical change and a chemical change?

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A physical change does not alter the chemical composition of a substance, while a chemical change results in the formation of new substances.

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What is an example of a physical change?

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Examples of physical changes include melting ice, boiling water, and breaking glass.

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What is an example of a chemical change?

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Examples of chemical changes include burning wood, rusting iron, and baking a cake.

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What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded and can be separated by physical means.