The object will dissolve in the container of water.
greater the pressure
That would depend upon the density of the oil (which will depend upon temperature), how absorbant of oil the substance was and how deep the oil is. Assuming the substance does not absorb any of the oil then depending upon the oil various things would happen: In some oils such as Car oils, Coconut oil, Crude oil California, Linseed oil which all have a density less than 0.95 g/ml the substance would sink (unless the oil was not deep enough in which case the substance would sit on the bottom of the container and appear above the surface of the oil). In other oils such as Castor oil, Crude oil Mexican, Rosin oil which all have a density greater than 0.95g/ml the substance would float.
If you place the object into the liquid it will sink.
Normally when you heat a substance its volume increases while mass stays the same. It may not be noticable but the density would decrease.
As a substance warms up, its density typically decreases. This is because the particles within the substance gain energy and therefore move further apart, resulting in a decrease in density.
A mixture is formed.
It will sink.
If the mass of a substance is cut in half but the volume remains the same, the density of the substance would also be cut in half. This is because density is calculated by dividing mass by volume, so reducing the mass will directly affect the density without changing the volume.
Density decreases when the mass of a substance decreases or when the volume of the substance increases. This can happen due to factors such as heating, which can cause expansion and lower the density. It can also occur when adding a less dense material to the original substance, diluting it.
It will sink.
it will sink
It will sink.