My lucky penny!
Completely Dissolving A Penny In Nitric Acid

Presumably not found heads-up on the sidewalk for good luck, this is a video of Youtuber NileRed Shorts completely dissolving a penny in nitric acid. As the penny dissolves, it produces noxious nitrogen dioxide gas, and, after about ten minutes, you’re left with nothing but a beaker full of dark green liquid as a result of the copper nitrate that forms. Unfortunately, NileRed Shorts did not conduct a taste test afterward, so we have no clue what this magic potion tastes like, or what it does.