| A | B |
| acid | a solution whose number of hydronium ions is greater than the number of hydroxide ions. |
| alkaline | referring to bases |
| aqueous solutions | solutions where water is the solvent |
| base | a solution that has more hydroxide than hydronium ions |
| buffer | chemical substances that neutralize small amounts of either an acid or a base added to a solution |
| concentration | the measurement of the amount of solute compared to the amount of solvent |
| dissociation | the breaking apart of the water molecule into two ions of opposite charges |
| hydronium ion | H3O+ |
| hydroxide ion | OH- |
| pH scale | a scale that compares the concentrations of hydronium and hydroxide ions. |
| saturated solution | a solution where no more solute can dissolve |
| solute | the substance dissolved in the solution |
| solution | mixture in which one or more substances are uniformly distributed |
| solvent | the substance in which the solute is dissolved |