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Topic: amphoteric "elements"  (Read 2952 times)

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Offline zephyrblows

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amphoteric "elements"
« on: June 18, 2007, 10:35:37 PM »
I know some metal (hydr)oxides are amphoteric, but my teacher said the metals having amphoteric (hydr)oxides can react with SA / SB THEMSELVES and produce H2.

Uh, why?
For example, Pb and Sn don't seem to be strong enough to reduce H2 out, do they? ???

Thanks a lot!

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