What is the defining characteristic of an acid?

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    It accepts hydrogen ions.
    It will donate or accept hydrogen ions, depending on the pH.
    It donates hydrogen ions.
    It has an excess of hydroxide ions.
    It has a pH greater than 7.

asked May 29, 2013 in Biology by anonymous
    

1 Answer

0 votes
It donates hydrogen ions.
answered May 30, 2013 by Bioshare ~Top Expert~ (34,070 points)



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