In general, when hydrocarbons like oil are added to water, the two liquids because hydrocarbons are and water is

do not mix, non-polar, polar

Explanation:

In general, when hydrocarbons like oil are added to water, the two liquids do not mix because hydrocarbons are non-polar and water is polar.

As a general rule of solubility, we say "like dissolves like", meaning polar compounds are soluble in polar solvents and non-polar compounds are soluble in non-polar solvents

This is due to the intermolecular forces, which are dispersion forces for non-polar compounds and dipole-dipole interactions for polar compounds.

the old alchemists made significant contributions to science even though there starting premises were off a bit. their conclusions after failure would steer them into better directions for investigation. science is no more than close observation and the initial mistakes result in rethinking and retrying experiments.