The layer of ethyl alcohol forms on the surface if some ethyl alcohol is poured into the container after the ice cube has melted.
The density of a substance is its mass per unit volume.
The SI derived unit for density is the kilogram/cubic meter, but chemist usually use gram per cubic centimeter.
Ethyl alcohol has lower density of water, so it would form on the surface.
The density of the water is an around 1000 kg/m³.
Mass is a fundamental measure of the amount of matter in the object.
Volume is the amount of space that a substance occupies.
More about density: brainly.com/question/1354972
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