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Amphiprotic refers to substances that are able to accept and donate a proton or Hydrogen ion. All amphoteric substances can be considered amphiprotic. Amphoteric refers to the ability to act as an acid and a base. All amphiprotic substances cannot be considered amphoteric.
I just wanted to clarify that the book defines amphoteric compounds as compounds that react with both acids and bases, not necessarily as compounds that can act as both acids and bases. That is why aluminum oxide can be classified as amphoteric but not amphiprotic (because aluminum oxide does not have any protons that it can donate). Water is define as amphiprotic because it can both accept and donate hydrogen ions.
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