Oxides: Basic, acidic, or amphoteric

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KaylaH
Posts: 26
Joined: Fri Sep 25, 2015 3:00 am

Oxides: Basic, acidic, or amphoteric

Postby KaylaH » Tue Dec 01, 2015 2:57 pm

What is a simple way to tell if an oxide is acidic basic or amphoteric? I'm mostly confused on the amphoteric aspect...

Alina Avetisyan 1B
Posts: 25
Joined: Fri Sep 25, 2015 3:00 am

Re: Oxides: Basic, acidic, or amphoteric

Postby Alina Avetisyan 1B » Tue Dec 01, 2015 3:13 pm

Metals form basic oxides (CaO)
Nonmetals form acidic oxides (SO3)
Metalloids form amphoteric oxides (As2O3) These are located on the diagonal line between metals and nonmetals.
Page 469 in the book gives more examples.


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