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Terms 2.3
| Term | Definition |
|---|---|
| polar | compound that has an uneven distribution of charge |
| hydrogen bond | the force of attraction between a hydrogen molecule with a partial positive charge and another atom or molecule with a partial or fully negative charge |
| cohesion | an attraction force that holds molecules of a single substance together |
| adhesion | the attraction force between two particles of different substances |
| capillarity | the attraction between molecules that results in the rise of the surface of a liquid when in contact with a solid |
| solution | a mixture in which one or more substances are uniformly distributed in another substance |
| solute | a substance dissolved in the solvent |
| solvent | the substance in which the solute is dissolved |
| concentration | the amount of solute dissolved in a fixed amount of the solution |
| saturated solution | solution in which no more solute can dissolve |
| aqueous solution | solutions in which water is the solvent |
| hydroxide ion | HO- ion |
| hydronium ion | H3O+ ion |
| acid | if the number of hydronium ions in the solution is greater than the number of hydroxide ions, the solution is this |
| base | if the solution contains more hydroxide ions than hydronium ions, it is ____ |
| pH scale | compares the relative concentration of hydronium ions and hydroxide ions in a solution (0=very acidic-7=neutral-14=very basic) |
| buffer | chemical substances that neutralize small amounts of either an acid or a base added to a solution |
Created by:
Addaleigh