amphoteric substances

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katherinemurk 2B
Posts: 68
Joined: Wed Nov 15, 2017 3:02 am

amphoteric substances

Postby katherinemurk 2B » Tue Dec 04, 2018 11:06 am

How can you tell a substance is amphoteric by just looking at it? or is there a way you can figure it out?

Ray Guo 4C
Posts: 90
Joined: Fri Sep 28, 2018 12:15 am

Re: amphoteric substances

Postby Ray Guo 4C » Tue Dec 04, 2018 11:09 am

Oxides formed by metalloids in the diagonal band are often amphoteric, such as barium oxides, aluminum oxides, gallium (Ga) oxides, tin (Sn) oxides, antimony (Sb) oxides and lead oxides.

Catherine Kim 3K
Posts: 31
Joined: Fri Sep 28, 2018 12:26 am

Re: amphoteric substances

Postby Catherine Kim 3K » Tue Dec 04, 2018 12:48 pm

Amphoteric substance is a molecule/ion that can act either as an acid or base. They should have transferable H and atom with lone pair electrons.

Ivan Tadeja 1G
Posts: 49
Joined: Fri Sep 28, 2018 12:28 am

Re: amphoteric substances

Postby Ivan Tadeja 1G » Tue Dec 04, 2018 1:59 pm

I believe that there is some sort of pattern on the periodic table which begins with Be and goes diagonal downwards ending in Bi. This would be in the case of Oxides.

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