Salad dressing with oil and vinger a mixture?

* Components retain their properties: The oil and vinegar don't chemically combine to form a new substance. You can still identify the oil and the vinegar separately in the dressing.

* Heterogeneous mixture: Often, the oil and vinegar will separate, forming distinct layers. This indicates that the mixture is heterogeneous, meaning its components are not uniformly distributed.

* Physical separation: You can easily separate the oil and vinegar by using a separating funnel or simply letting the mixture settle and carefully pouring off the oil layer.

Therefore, salad dressing made with oil and vinegar is a physical mixture, not a chemical compound.