Chapter 6 Section 3 Vocabulary

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Polar Molecules

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Polar Molecules

Molecules that have an unequal distribution of charges

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Hydrogen Bond

A weak interaction involving an attraction between a hydrogen atom and a fluorine, oxygen, or nitrogen atom.

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Mixture

A combination of two or more substances in which each substance retains its individual characteristics and properties.

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Solution

A mixture that has a uniform composition throughout. Also known as a homogenous mixture.

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Solvent

A substance in which another substance is dissolved.

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Solute

A substance that is dissolved in a solvent.

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Acids

Substances that release hydrogen ions when dissolved in water

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Bases

Substances that release hydroxide ions when dissolved in water

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pH

The measure of concentration of hydrogen ions in a solution. The scale ranges from 0-14.

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Buffers

Mixtures that can react with acids or bases to keep the pH within a particular range

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