PH
Numeric value that indicates the relative acidity or alkalinity of a substance on a scale of 0-14, with the neutral point at 7. Acid solutions have pH values lower than 7, and basic or alkaline solutions have pH values greater than 7.
Subject:
Numeric value that indicates the relative acidity or alkalinity of a substance on a scale of 0-14, with the neutral point at 7. Acid solutions have pH values lower than 7, and basic or alkaline solutions have pH values greater than 7.