I left a piece of lead and a bunch of copper in a mixture of white vinegar and malt vinegar in a sealed container for months and the lead formed a black crystal, what is it?
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I left a piece of lead and a bunch of copper in a mixture of white vinegar and malt vinegar in a sealed container for months and the lead formed a black crystal, what is it?

u/AlternativeArtist226 — 1 month ago