Floats
ethanol
Strictly be density, nickel should float on mercury.
Mercury and alcohol (ethanol).
It will sink in water, but it will float in mercury. Depends on what the liquid is.
Ethanol will float
A paper clip does not float on ethanol because the surface tension of ethanol is not enough to support the weight of the paper clip. Evelyn Biologist
It sinks. Pure ethanol has a density of about 0.7, so ice is more dense than the ethanol.
ethanol
Floats
it will float
Strictly be density, nickel should float on mercury.
Solid iron will float in liquid mercury. In most liquids it will sink.
No, they are not bouyant. They won't float on water, but they will float on mercury.
Definitely ethanol. Ethanol doesn't freeze until around -178F; mercury freezes at around -38F. You aren't going to see -178F in the arctic on earth, but -38F is far from impossible.
No, hexane is less dense than ethanol- hexane has a density of 0.6548g/mL and ethanol has a density of 0.789g/mL, so hexane will float on top of ethanol.
Oil is denser than cork, so the cork would float.