Final answer:
Ocean water is a good example of a homogeneous mixture, appearing as a single uniform substance despite containing both salt and water. The dissolved salt in the water is evenly distributed, demonstrating the traits of a solution.
Step-by-step explanation:
Ocean water is an excellent example of a homogeneous mixture because it is uniform in composition throughout. This mixture, commonly referred to as saltwater, seems like a single substance, even though it is comprised of two components: salt and water. Saltwater demonstrates the properties of a solution where the dissolved substance, salt, is evenly distributed throughout the water, creating a consistent composition.
This uniform distribution often leads to confusion between homogeneous mixtures and pure substances, but the key difference lies in the varying concentration of salt that can occur between different samples of ocean water. In contrast, a substance like pure water (H2O) has a fixed ratio of hydrogen to oxygen, making it a compound. Other examples of homogeneous mixtures include air, composed of various gases, and metal alloys like brass, which are mixtures of copper and zinc.