A solution with a pH of 6.5 is classified as which of the following?

A solution with a pH of 6.5 is classified as acidic because it falls below the neutral pH level of 7. The pH scale ranges from 0 to 14, where values less than 7 indicate acidity, values greater than 7 indicate basicity, and a value of 7 is considered neutral. Therefore, since 6.5 is less than 7, it is indeed classified as an acidic solution.

In the context of marine environments, understanding pH is critical since it can influence corrosion rates in metals. Acidic conditions often accelerate corrosion processes, which is especially relevant for those working in marine applications.