On the \(\mathrm{pH}\) scale, which numbers indicate a basic solution? An acidic solution? A neutral solution? What makes a solution basic, acidic, or neutral? (pages \(27-29\) )

The pH scale is a measurement of the acidity or basicity of a solution. It ranges from 0 to 14, with 7 being the middle value that represents a neutral solution. Values below 7 indicate an acidic solution, and values above 7 indicate a basic (or alkaline) solution.

On the pH scale: - A basic solution has a pH value greater than 7. - An acidic solution has a pH value less than 7. - A neutral solution has a pH value of 7.

A solution is considered basic, acidic, or neutral depending on the concentration of hydrogen ions (H+) and hydroxide ions (OH-) present in the solution: 1. Basic solution: In a basic solution, the concentration of hydroxide ions (OH-) is greater than the concentration of hydrogen ions (H+). As a result, the pH value will be greater than 7. Basic solutions usually taste bitter and feel slippery. 2. Acidic solution: In an acidic solution, the concentration of hydrogen ions (H+) is greater than the concentration of hydroxide ions (OH-). As a result, the pH value will be less than 7. Acidic solutions usually taste sour and can be corrosive. 3. Neutral solution: In a neutral solution, the concentration of hydrogen ions (H+) is equal to the concentration of hydroxide ions (OH-). As a result, the pH value will be 7. Neutral solutions have no characteristic taste and don't carry the properties of an acidic or basic solution.