ph scale
Noun
-
referred to in: chemical science, chemistry - the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactionsis a type of: hydrogen ion concentration - the number of moles of hydrogen ions per cubic decimetersubtypes:
- acidity - pH values below 7
- alkalinity - pH values above 7
- neutrality - pH value of 7
same as: ph
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