They would float on the surface of the Mercury but they wouldn't react with the Mercury.
steel will float in mercury
Thermometers would be useless.
You would slowly die from the brain damage mercury causes.
burn to death
we would die
Mercury causes major neurological problems.
They would because of the lack of oxygen
burn up
rock
Nothing, it is impossible to sustain life on mercury. YOU WOULD DIE!!!
The height of the Mercury column would decrease.