PH

A pH is a scale that denotes how Acidic or basic a substance is. Pure water has a pH of 7.0 and is neither acidic nor basic.

Other /More definition:
pH is a measure of the relative acidity or alkalinity of water. Water with a pH of 7 is neutral; lower pH levels indicate increasing acidity, while pH levels higher than 7 indicate increasingly basic solutions.

Other /More definition:
A pH is a numerical measure of the hydrogen ion Concentration used to indicate the Alkalinity or acidity of a substance. Measured on a scale of 1.0 (acidic) to 14.0 (basic); 7.0 is neutral.

Other /More definition:
A pH is a measurement of the acidity or Alkalinity level of a solution

Other /More definition:
PH is the numeric value that indicates the relative acidity or Alkalinity of a substance on a scale of 0 to 14, with the neutral point at 7. Acid solutions have pH values lower than 7; basic or alkaline solutions have pH values greater than 7.

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