About pH: The pH value of a solution is a measure of its acidity or alkalinity. A basic, neutral solution measures 7 on the pH scale. As a solution gets more acidic, the pH value will decrease. As the solution becomes less acidic, or more alkaline, the value will increase. The pH scale ranges from 0 pH (very acid) to 14 pH (highly alkaline). Pure water has a pH of 7, indicating that it is neither acidic nor alkaline, but neutral.
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