Nothing. They're terrestrial.
the salt starts to disintegrate
It dies.
explodes
It floats.
The color of the flame depends on the metal from the salt.
The concentration of salt increase up to saturation.
Salt cannot be "put in mercury" unless the salt is mechanically restrained. Mercury has a much higher density than salt and does not chemically react with it, so that salt will simply float on the mercury.
It taste like terrible sprite!
iii doontnt knoww?
They die
It fizzes up and overflows.
It will become watery because of the salt or sugar you put on it....