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What does pH measure?

A. Altitude
B. Humidity
C. Acidity
D. Temperature


Sagot :

Final answer:

pH measures the acidity or alkalinity of a substance on a scale of 0 to 14.


Explanation:

pH measures the acidity and alkalinity of a substance by determining the number of free hydrogen ions present. It is a scale ranging from 0 to 14, with 7 being neutral, values below 7 indicating acidity, and values above 7 indicating alkalinity.


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