Why do olive oil and vinegar (a water-based solution) tend to separate in salad dressing? will added salt dissolve in the oil or in the vinegar? explain your answer.

Like dissolves like. A polar substance will not dissolves a non polar substance. In the case of oil and vinegar, the vinegar is polar and more dense than the oil, so it settles on the bottom of the container. The oil is non polar and less dense, so it doesn’t dissolve in the vinegar, and it floats on.

the animal that would be cutest if scaled down to the size of a cat? elephant

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.