Final answer:
A homogeneous mixture has a uniform composition with all particles evenly distributed, exemplified by salt water or the air, where different components are mixed but not visually distinguishable.
Step-by-step explanation:
The homogeneous mixture, also known as a solution, has a composition that is uniform throughout and all of the particles are evenly distributed. This means that no matter how small a sample you take from the mixture, it will have the same proportion of substances. An example of a homogeneous mixture is salt water, where the salt is dissolved evenly throughout the water, creating a consistent composition.
Unlike heterogeneous mixtures, where the substances are not consistently distributed, homogeneous mixtures are uniform in composition and the different components are not visually distinguishable from one another. The air we breathe is another example of a homogeneous mixture as it is made up of various gases that are mixed in a constant ratio and cannot be seen separately.