I was going through the archive of Real Life Comics (first time reader, enjoying it so far), and in one of the comics, the main character of the comic reveals he has ordered hydrochloric acid, methylene chloride and mercury from an online chemist, and then says he ordered them to "pour them together and see what he gets".
I assume mixing these chemicals is probably not a good idea, but what would happen when mixing them? Like, I don't expect anyone to try this out (though if you can or have done this, your experience is definitely valued), but based on the properties of these chemicals, what would be the likely outcome?
