In science we as grade 9’s did a lab that made something very cool. We soaked copper in chlorine. We kept washing it out and out and out till it was the right consistency at the bottom. Then we poured out the leftover liquid and scooped the contents. Then we took the wet sand-like substance and put it over a bunsen burner and it made a cool green flame. You can see the exsparement happen below.
Here is 2 videos of the lab
I enjoyed this lab I thought that it made a very awesome green effect. It helped me under stand more about the elements and what happens when you mix them together or in this case soaking.