pH is a measure of the activity of hydrogen ions (H+) in a solution and, therefore, its acidity or alkalinity.
Aqueous solutions with pH values lower than 7 are considered acidic, while pH values higher than 7 are considered alkaline.
For more information about the topic PH, read the full article at Wikipedia.org, or see the following related articles:
Editor's Note: This article is not intended to provide medical advice, diagnosis or treatment.
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