Question

why ethanol and water are mixed in each ratio

Answer 1

Answer:

Because water molecules are polar, any liquid that does not have polar molecules—such as oil—is usually immiscible with water. Rubbing alcohol molecules have a polar and nonpolar part, which means they are able to form hydrogen bonds with water and therefore able to mix with it.

Answer 2

because water molecules are polar any liquid that does not have polar molecules such as oil is usually immiscible with water rubbing alcohol molecule have a polar and nonpolar part which mean they are are able to form hydrogen bonds with water and therefore able to mix with.