ACID In chemistry: hydrogenated compound whose hydrogen molecules combine with a metallic element to produce a salt plus water. For example, if sulfuric acid H²SO? is it combined with cuperic oxide Cu²O we get copper sulfate Cu²SO? H²O . 2 . Figuratively, attending to the corrosive characteristics of acids, acid is spoken of in a very critical commentary. 3 . Compound whose pH is between 0 and 6, 999 . 7 is neutral. Between 7, 001 and 14 is alkaline.
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