As2O and Bi2O3

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Baoying Li 1B
Posts: 113
Joined: Sat Aug 17, 2019 12:18 am

As2O and Bi2O3

Postby Baoying Li 1B » Sat Dec 07, 2019 9:03 pm

Why are both As2O and Bi2O3 amphoteric compounds?

Connor Ho 1B
Posts: 102
Joined: Sat Aug 17, 2019 12:17 am

Re: As2O and Bi2O3

Postby Connor Ho 1B » Sat Dec 07, 2019 9:07 pm

As and Bi are both grouped with the amphoteric oxides that are grouped along the metalloid line. The reason why is because when these are reacted with either an acid or a base, it is treated as the opposite; meaning, if it was reacted with an acid, it would act as a base, and vice-versa.

Jacob Motawakel
Posts: 103
Joined: Wed Sep 18, 2019 12:20 am
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Re: As2O and Bi2O3

Postby Jacob Motawakel » Sun Dec 08, 2019 8:25 pm

Because As and Bi are along the metalloid line. The other ones we need to know are also that Metal oxides are basic, and nonmetal oxides are acidic.

Vincent Leong 2B
Posts: 207
Joined: Fri Aug 09, 2019 12:15 am

Re: As2O and Bi2O3

Postby Vincent Leong 2B » Sun Dec 08, 2019 8:28 pm

We can also distinguish their amphoteric nature from looking at their lewis structures. Although it is easier to know that since they border the metalloid line, they will have amphoteric properties

Deepika Reddy 1A
Posts: 125
Joined: Thu Jul 11, 2019 12:15 am

Re: As2O and Bi2O3

Postby Deepika Reddy 1A » Sun Dec 08, 2019 8:59 pm

I think you just have to memorize the diagonal trend in the periodic table. The metals and oxides formed by some of these elements are amphoteric.


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