3 ms·
If you let it react with water it gets to be even more fun (http://en.wikipedia.org/wiki/Hydrofluoric_acid http://en.wikipedia.org/wiki/Hydrofluoric_acid)
by tomjen 18y ago
If you let it react with water it gets to be even more fun (http://en.wikipedia.org/wiki/Hydrofluoric_acid http://en.wikipedia.org/wiki/Hydrofluoric_acid)