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Amy Kumar 1I
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Postby Amy Kumar 1I » Sun Dec 08, 2019 10:19 am

what are the reactions for some amphoteric compounds showing that they can act as acids and bases?

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Re: examples

Postby Chem_Mod » Sun Dec 08, 2019 10:26 am

Write as you would any other proton donating or accepting reaction. Write one reaction for it acting as an acid (donate proton to water) and one for it acting as a base (accept proton from water).

Louise Lin 2B
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Re: examples

Postby Louise Lin 2B » Sun Dec 08, 2019 9:56 pm

One example of an amphoteric compound is water, H2O.
Water as a base:
HCl(aq) + H2O(l) —> H3O+(aq) + Cl-(aq)

Water as an acid:
H2O(l) + NH2-(aq) —> OH-(aq) + NH3(aq)

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