Which term refers to the measure of acidity or alkalinity with a neutral level at pH 7?

The term that refers to the measure of acidity or alkalinity is pH. It is a logarithmic scale used to specify the acidity or basicity of an aqueous solution. The pH scale ranges from 0 to 14, with 7 representing a neutral state, indicating a balance between acidity and alkalinity. Values below 7 indicate acidity (higher hydrogen ion concentration), while values above 7 indicate alkalinity (lower hydrogen ion concentration).

Understanding pH is fundamental in many areas, including soil science, water quality assessment, and environmental management, as it affects chemical reactions, biological processes, and overall ecosystem health. Knowing how pH influences these factors helps professionals in making informed decisions about grading, drainage, and stormwater management strategies.