What would be an example of a homogenous mixture?

A homogenous mixture is one in which the components are evenly distributed throughout the mixture, resulting in a uniform composition. In the case of sugar dissolved in water, the sugar molecules disperse uniformly among the water molecules, creating a solution where you cannot distinguish between the individual components. The entire mixture appears consistent, whether you sample it from one area or another.

In contrast, oil and water do not mix uniformly; they form distinct layers due to differences in density and polarity, making them a heterogeneous mixture. Sand and salt can be physically separated, as they retain their individual properties and do not uniformly combine. Lastly, blood with visible cells shows different phases, as the cells can be seen suspended in the plasma, indicating another form of heterogeneous mixture. Thus, the sugar solution exemplifies a homogenous mixture due to its consistent composition.