Final answer:
Distilled water is a homogeneous mixture, as it is a pure substance with a uniform composition throughout. It is produced by distillation, a process that removes impurities and results in water with consistent properties.
Step-by-step explanation:
Distilled water is an example of a homogeneous mixture, or more precisely, a pure substance. In the distillation process, water is boiled to produce vapor, which is then condensed back to a liquid form. This process removes impurities and dissolved minerals, resulting in water that is uniform in composition throughout. Distilled water has the same properties and composition in every part of the sample, indicating that it is indeed homogeneous. Unlike heterogeneous mixtures, where components can be physically separated and are not evenly distributed, distilled water's uniformity does not allow for such separation as it is a single compound, H2O, throughout its entirety.