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H3O+??? -- mglg( talk) 23:50, 8 December 2006 (UTC)
In the page for amphiprotic substancecs, its stated that not all Amphoteric substances are Amphiprotic. I think an example is needed, since the definitions of Amphiprotism (a proton donator or acceptor) and amphoterism (an acid or a base) are very similar and confusing. —The preceding unsigned comment was added by 144.136.5.191 ( talk) 07:13, 14 January 2007 (UTC).
I agree with this. I am just learning acids and bases, and I understand them so far as substances that gain or lose protons, so I don't quite see what it means to be amphoteric but not amphiprotic. --— Unbitwise ( talk) 23:20, 13 September 2010 (UTC)
"Amphoteric substances can either donate or accept a proton." Should this be changed to "Amphoteric substances can either donate or accept a pair of electrons."? It seems like they're using the Bronsted-Lowry definition of acids and bases. For instance, Al2O3 (aluminum oxide) is an amphoteric oxide, and it certainly does not have the capability to donate a proton. —Preceding unsigned comment added by 155.41.31.249 ( talk) 19:21, 2 April 2011 (UTC)
Please note ZnO was mentioned twice, first as the first example, then as the final detailed example in "Some other examples include:...". Would someone please pay attention. Biscuit-flower ( talk) 06:48, 14 April 2009 (UTC)
I dont really think that anyone should be able to add to this page, let alone any pages, because some students use this as a reference and some of this information could be wrong.Bold text —Preceding unsigned comment added by 68.76.141.116 ( talk) 21:08, 17 February 2010 (UTC)
In the article:
Ampholytes are amphoteric molecules that contain both acidic and basic groups and will exist mostly as zwitterions in a certain range of pH.
How about replacing this with:
Ampholytes are amphoteric molecules that contain both acidic and basic groups, acting as zwitterions in a certain range of pH.
I don't what's really true, so I won't make the change, but the original seems vague. 178.38.104.137 ( talk) 19:14, 17 January 2015 (UTC)
No details currently.