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How can I get tin metal, or some other metal resistive to oxidation, to fall out of a ionic salt in solution? Answered

Is there a simple chemical reaction that leads to a pure metal precipitate?


Which metal is it, what salt solution? There are, but if you're after something specific, we'd need to know what you've got. L

Any metal.  I want to make a piece of paper with an impregnated ionic salt, such that when you apply some solution to it, some non-oxidized metal falls out of the salt or solution, leaving conductive traces.

To sci fi?