In water Mercury would sink very quickly as it is very heavy. Keep in mind that part of mercury dissolves in water and is extremely poisonous.
Lead floats in mercury.
Lead would float in mercury, as it is slightly less dense. (11.3 g/cc for lead, 13.5 g/cc for mercury)
Solid iron will float in liquid Mercury. In most liquids it will sink.
Most materials will float in Mercury because it is so dense. A lump of Lead will float in a bath of Mercury. The well-known metals Gold, Platinum, Tungsten, Uranium and Plutonium are more dense than mercury and would sink. More specifically, any material having a density less than 13593 Kg/m3 will float in a bath of Mercury.
A pen would sink and float
Oil is denser than cork, so the cork would float.
It will sink in water, but it will float in mercury. Depends on what the liquid is.
Depends on the medium, and whether the ball is solid or not. A solid ball would float on mercury, sink in water. If it were hollow enough (or filled with, say, cork) it would float in water.
Mercury is a heavy metal, it will sink in sea water.
Lead floats in mercury.
A short piece may be supported by the surface tension of water, but a coil of copper wire would sink.
Lead would float in mercury, as it is slightly less dense. (11.3 g/cc for lead, 13.5 g/cc for mercury)
Solid iron will float in liquid mercury. In most liquids it will sink.
Chromium, with a density of 7.19 gm/cubic centimeter, will float on liguid mercury, with a density of 13.5 gm per cubic centimeter.
Solid iron will float in liquid Mercury. In most liquids it will sink.
Gold is a higher density than Mercury so it will sink if placed into a container of mercury.
1. The density of mercury is 13 534 kg/m3.2. Mercury sink in water.