What pH level is considered neutral?

A pH level of 7 is considered neutral, which means that the substance is neither acidic nor basic. This is a key concept in chemistry, where the pH scale ranges from 0 to 14. Values below 7 indicate acidity, while values above 7 represent alkalinity. The neutrality of pH 7 is particularly significant in various fields, including biology, environmental science, and chemistry, as many biological processes and chemical reactions occur optimally around this pH level. For example, pure water has a pH of 7 at 25 degrees Celsius, making it the standard reference point for understanding how different substances interact in terms of acidity and basicity.