Chapter 6 Section 3 Vocabulary

Polar Molecules

Molecules that have an unequal distribution of charges

Hydrogen Bond

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

Mixture

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

Solution

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

Solvent

A substance in which another substance is dissolved.

Solute

A substance that is dissolved in a solvent.

Acids

Substances that release hydrogen ions when dissolved in water

Bases

Substances that release hydroxide ions when dissolved in water

pH

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

Buffers

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