It depends on the oil's density. The Maconda well has been considered a light oil, I believe, with an API gravity of 35, so it would initially float on the surface. However, as the lighter hydrocarbons are evaporated, the oil can become heavier. I don't know if the oil from the Maconda could become so heavy that it would sink below the surface as a lot of oil components would have to be evaporated off. An oil-dispersant mixture could exist below the surface, particularly if there was a lot of turbulence. Oil with a density of less than 10 API (Specific gravity of 1) would sink.
Yes, because the oil is less dense than the sea water.
Float.
No, it is not. Oil and water do not mix. If you pour oil into water, the oil will float to the surface. If you pour water into oil, the water will sink to the bottom and the oil will float on top.
Most (but not all) oil is less dense than water. That oil which is less dense than water will float. That oil which is denser than water will sink.
Due to high density of sea water things float higher in sea water.
No.
A person will actually float in sea water, even more easily than in fresh water because of the sea's salt content.
Oil and gas are less dense than water therefore will separate and float.
An object will float on water if it has less density than the water.
No. Oil will float on vinegar as vinegar has the same density as water.
oil
sea water has a higher density