Is Italian salad dressing homogeneous mixture?

A heterogeneous mixture is a mixture in which the components are not evenly distributed throughout the mixture. In other words, the mixture is not uniform in composition. Italian salad dressing is a heterogeneous mixture because the oil, vinegar, and herbs are not evenly distributed throughout the dressing. The oil and vinegar are immiscible liquids, meaning that they do not mix together. The herbs are solid particles that are suspended in the liquid. When you shake the dressing, the oil, vinegar, and herbs will mix together temporarily, but they will eventually separate again.