Aqueous Solutions

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Aqueous Solution Noun

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[ey-kwee-uhs suh-loo-shuhn]

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Aqueous Solution

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A type of solution in which the solvent is water, with other substances uniformly mixed within it.

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Example: This diagram shows how a solid (solute) dissolves in water (solvent) by breaking into ions that get surrounded by water molecules, forming a solution.

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Solvent Noun

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[sol-vuhnt]

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Solvent

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The substance in a solution that is present in the greatest amount and is responsible for dissolving the solute.

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Example: This diagram shows a solution where the solvent is the blue liquid substance that dissolves the solute (the white particles).

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Solute Noun

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[sol-yoot]

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Solute

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The substance in a solution that is dissolved by the solvent and is typically present in a lesser amount.

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Example: This diagram shows that a solute (pink particles) is a substance that dissolves in a solvent (blue particles) to form a solution.

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Concentration Noun

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[kon-suhn-trey-shuhn]

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Concentration

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A measure of the amount of a solute that has been dissolved in a specific amount of a solvent.

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Example: This image shows different concentrations of a solution. The solution with the most solute is the most concentrated and has the darkest color.

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Dilution Noun

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[dahy-loo-shuhn]

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Dilution

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The process of reducing the concentration of a solute within a solution, typically by adding more solvent.

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Example: Adding more solvent (like water) to a concentrated solution makes it less concentrated, or more dilute, as shown by the color getting lighter.

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Rate of Dissolution Noun

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[reyt ov dis-uh-loo-shuhn]

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Rate of Dissolution

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The measure of how quickly a solute dissolves into a solvent to form a solution under specific conditions.

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Example: This image shows three ways to increase the rate of dissolution: using hot water, increasing the solute's surface area (powder), and stirring the mixture.

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Solubility Noun

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[sol-yuh-bil-i-tee]

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Solubility

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The maximum amount of a solute that can be dissolved in a given solvent at a specific temperature.

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Example: This image shows a solute (sugar) dissolving in a solvent (water) to form a solution, which demonstrates the concept of solubility.

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Solution Noun

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[suh-loo-shuhn]

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Solution

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A homogeneous mixture composed of two or more substances that are evenly distributed at the molecular level.

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Example: This image shows that a solution is formed when a substance, like salt (the solute), dissolves completely into another substance, like water (the solvent).