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Formation of Silver crystals

submitted by mintbbb

1 decade 2 years 7 months 3 weeks ago

Science

The silver nitrate reacts with copper to form hairlike crystals of silver metal and a blue solution of copper nitrate:
2 AgNO3(aq) + Cu(s) → Cu(NO3)2(aq) + 2 Ag(s)

5 Comments

Tags for this video have been changed from 'silver nitrate, copper coil, copper, silver, ion, crystal' to 'silver nitrate, copper coil, copper, silver, ion, crystal, chemistry, chemical reaction' - edited by calvados

And thats how photo labs used to recoup a little extra money from expended developer.

Does the wire have to be in a coil formation for this to work? Or are they just getting more surface area for the demonstration?

What is it about copper that reacts chemically to other substances?

I wish I'd taken chemistry in school.

darkpaw02 says...

Copper isn't all that reactive actually, it has similar properties to gold and silver. The similarity there is due to having a single electron in the "outer shell". That single electron is also why it does some interesting stuff.

http://en.wikipedia.org/wiki/Reactivity_series

... honestly I just like that this is in the top 15

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