Answer: When polar and non-polar substances are mixed, several observations can be made.
Step-by-step explanation: Polar and non-polar substances do not mix easily due to their different chemical properties. Polar substances, such as water, have a positive and negative end, called poles, which allows them to form hydrogen bonds with other polar molecules. On the other hand, non-polar substances, like oil, lack these poles and do not form hydrogen bonds. As a result, when polar and non-polar substances are mixed, they tend to separate into distinct layers. For example, if you mix water and oil, you will see two separate layers where the water settles at the bottom and the oil floats on top.