HW: 12.17

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Johana Jeon 1A
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Joined: Sun Feb 12, 2017 3:00 am

HW: 12.17

Postby Johana Jeon 1A » Fri Jul 28, 2017 5:55 pm

State whether the following oxides are acidic, basic, or amphoteric:
a) BaO
b) SO3
c) As2O3
d) Bi2O3

Can someone walk me through this problem?
I know that amphoteric means it can act as both acid / base, but I'm confused on how to solve this question
Thank you!

Chem_Mod
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Re: HW: 12.17

Postby Chem_Mod » Fri Jul 28, 2017 10:18 pm

Write out the likely reaction when the oxide is reacted with water. From there, determine whether the solution is acidic or basic.

Helen Shi 1J
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Re: HW: 12.17

Postby Helen Shi 1J » Tue Dec 05, 2017 9:28 pm

Can someone explain why BaO is basic and As2O3 and Bi2O3 amphoteric?

Julie Steklof 1A
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Joined: Thu Jul 13, 2017 3:00 am

Re: HW: 12.17

Postby Julie Steklof 1A » Thu Dec 07, 2017 9:48 am

Helen Shi 1B wrote:Can someone explain why BaO is basic and As2O3 and Bi2O3 amphoteric?


As and Bi are metalloids and can act as either acids or bases.

ramayyala1G
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Re: HW: 12.17

Postby ramayyala1G » Wed Jun 13, 2018 7:02 pm

Julie Steklof 1A wrote:
Helen Shi 1B wrote:Can someone explain why BaO is basic and As2O3 and Bi2O3 amphoteric?


As and Bi are metalloids and can act as either acids or bases.


And BaO is basic because if you look at the reaction of BaO + H2O = Ba(OH)2, it forms hydroxide compounds meaning it s gonna be a basic compound. The general rule of thumb is if metals typically form metal oxides.


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