Answer:
pH is a measure of the acidity or alkalinity of a solution.
Step-by-step explanation:
It indicates the concentration of hydrogen ions (H+) present in the solution. The pH scale ranges from 0 to 14, where a pH of 7 is considered neutral. Solutions with a pH less than 7 are acidic, while those with a pH greater than 7 are alkaline or basic. The pH scale is logarithmic, meaning that each unit represents a tenfold difference in acidity or alkalinity.
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