How to determine amphoteric compounds

[Jennifer1E]

How can we tell if a compound is amphoteric? What characteristics can we look for to determine that its amphoteric?

[Sarah_Wilen]

The definition of amphoteric is a species that is able to act as both a base and acid, which means it should be able to accept and donate a proton when need be.

Well, for one example, we know that water is amphoteric...

Examples:
H2O can become H3O+ or OH-.
HCO3- can become CO3^2- or H2CO3.
HSO4- can become H2SO4 or SO4^2-.

Do you see the trend-ish?

[Kyle Alves 3K]

Also, the easiest way to remember is if the elements in question are part of the metalloid oxides section of the periodic table
as opposed to the nonmetal oxides (group p) which are acidic and the metal oxides (group 1 and 2) that are basic

[McKenna disc 1C]

Sarah's answer is great.
I have in my notes that amphoteric means that it can react with both acids and bases, whereas amphiprotic means that it can act as a proton donor or a proton acceptor (a Bronsted acid or a Bronsted base, respectively). I may be wrong, but I'm getting that Sarah's answer describes amphiprotic character rather than amphoteric?
If anyone could help me delineate further between the two (i.e., examples of both), that would be awesome.

Thanks!

[lwon Dis2I]

Could someone elaborate more on Kyle's process of easily identifying the amphoteric substance out of a list of substances that you are given? I still do not quite understand. Are there any patterns we should look out for?

[Tiffanny_Carranza_2D]

Could someone elaborate more on Kyle's process of easily identifying the amphoteric substance out of a list of substances that you are given? I still do not quite understand. Are there any patterns we should look out for?

I read that you could figure it out by seeing which compound has hydrogen
then you would need to check if that compound could give away an H+

for example H2PO4- has H+ to give away

then you need to check if it can receive an H+ thus the compound would need to be negatively charged

H2PO4- has both hydrogens to give away and a negative charge.