In MOST burning liquids, the water will sink, creating an explosion of steam as it become super-heated, causing the fire to spread rapidly.
Some aqueous film-forming fire extinguishers generate a foam that floats on the surface, smothering the fire.
Certainly not ! Class B fires include petrol/oil fires as well as grease (chip pan) fires. Using a water extinguisher will not extinguish these types of fires because - since the flammable substance will float on water - it simply heats the applied water, turning it to steam - resulting in an explosive 'cloud' of burning vapour.
On some liquids it will float, on others it will not.
in relation to solids or liquids in liquids: Density. A lighter density compound/liquid will float in a heavier density liquid
A needle can be made to float on very still water.
Hot liquids have lower density than cooler liquids because the heat causes the molecules to spread out, making them less dense. This difference in density causes the hot liquid to float above the cool liquid because objects with lower density float on top of objects with higher density.
Yes, a fire extinguisher works on a grease fire. What you have to avoid with grease fires is throwing water on them, because the burning grease will just float on the water and will be splashed around as the water heats and vaporizes, spreading the fire, rather than being put out. But the carbon dioxide based fire extinguisher doesn't have that problem.
because of density
Yes, less dense liquids float on top of denser liquids. This is due to buoyancy, where objects with less density displace an equal weight of the denser fluid, causing them to float. This principle is why substances like oil float on water.
Yes, eggs can float in dense liquids due to the principle of buoyancy. When a liquid is denser than the egg, it can support the egg's weight, causing it to float. This is why eggs may float in liquids like saltwater or sugar water, which are significantly denser than plain water. Conversely, if the liquid is less dense, the egg will sink.
What liquid? Being plastic, they certainly float in water.
Solid iron will float in liquid mercury. In most liquids it will sink.
Liquids can float on each other due to differences in their densities. When a less dense liquid is poured on top of a denser liquid, it will float because it is lighter and less likely to sink. This is known as stratification, where liquids of different densities form layers with the least dense liquid on top.