No. Only pumice (volcanic) stone can float.
Air
If it is a thin, small piece of copper put it in water with soap and I think it will float Copper will float in Mercury. Copper will float in Uranium Hexafluoride but good luck getting your hands on any of that.
Yes if it floats. Does Marble float in water? If not then the answer is no.
Gold can float on water if there's a layer of oil on the surface. To break the surface tension, a drop of Dawn soap will do the trick.
Yes the boat will float on liquid soap
No, a bar of soap is to heavy to float on anything.
No. Only pumice (volcanic) stone can float.
This is nonfiction. Ivory soap is known to float due to its unique formulation that incorporates air bubbles during production.
A stone that can float on water is a pumice stone. Ejected from a volcano, and full of holes, it has been known to float.
The stone is heavier than the same volume of water. In short the density of the stone is more than the water. So the stone does not float on the water.
Yes
Air
No. To get them to float they must be placed on something light.
Chloritic schist or soap stone
Because they are heavy
The density of the bubble is lower.