![The pH scale measures the acidity or alkalinity of a substance.](http://static.sciencelearn.org.nz/images/images/000/004/557/full/ART_Acids_and_bases_PH_Scale_v2.png?1674174669)
The pH scale measures the acidity or alkalinity of a substance. The scale ranges from 0 (the most acidic) to 14 (the most basic).
The pH scale measures the acidity or alkalinity of a substance. The scale ranges from 0 (the most acidic) to 14 (the most basic).