Properties of Amphorteric Compounds

[Alison Le 2E]

Hi! What are the chemical properties of amphoteric compounds? Thanks!

[Caitlin_Tang_Dis3H]

Hi!
Based on the lectures, an amphoteric compound is one that acts as both an acid or a base depending on the solution it is in. It can also act or react with both acids or bases. There is a band of amphoteric oxides that matches the band of metalloids.

[Kassidy Patron 1L]

Hi! After doing the achieve, I also learned some helpful factors: because it can act as both a Bronsted acid and base, it needs to be able to give off an H proton as well as accept H protons. Therefore, the compound must have hydrogen and be able to accept H+ (such as being negatively charged).

[claireselleck_3E]

Kassidy put it very well. Bronsted acids donate H+, so when identifying amphoteric compounds, this must be present in the formula. Bronsted bases accept H+, so we'd be looking for a negative charge. There was a good example of this in the achieve homework where you had to identify the amphoteric compound and the choices given either lacked a hydrogen or did not contain a negative charge. So, you just want to find the compound that has both