If the pH of a solution is above 7, how is that solution classified?

A solution with a pH above 7 is classified as basic or alkaline. The pH scale ranges from 0 to 14, with 7 being considered neutral. Values below 7 indicate acidity, whereas values above 7 signify that the solution has a higher concentration of hydroxide ions (OH-) compared to hydrogen ions (H+), which characterizes basic solutions.

In practice, a basic solution is often associated with substances like baking soda or ammonia, which can neutralize acids. This classification plays an essential role in various scientific and practical applications, including chemistry, biology, and environmental science, where the acidity or basicity of a solution can significantly impact chemical reactions and biological processes.