The oil is non-polar and does not dissolve the color or sugar. This is a ball-and-stick model of citric acid. Citric acid is dissolved in water in oranges, lemons, grapefruit, and other citrus fruits.

The structure of a small molecule can also be shown as a three-dimensional ball-and-stick model. These models show how the atoms and bonds are arranged in space. The diagram shows a ball-and-stick ...