The pH level is the quantity that tells you whether a solution is acidic or basic, with a scale from 0 to 14 indicating the level of acidity or basicity. A pH less than 7 is acidic, while a pH greater than 7 is basic. Understanding pH is crucial in chemistry as it helps identify the nature of substances in solutions. ;
The pH level indicates whether a solution is acidic or basic, with a scale from 0 to 14. A pH below 7 is acidic, while a pH above 7 is basic. Thus, the correct answer is D. pH.
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