The difference between heterogeneous and homogeneous mixtures is the degree at which the materials are mixed together and the uniformity of their composition. A homogeneous mixture is a mixture where the components that make up the mixture are uniformly distributed throughout the mixture.The composition of the mixture is the same throughout. There is only one phase of matter observed in a homogeneous mixture.Homogeneous Mixture Examples. 1  air.ou can't see individual chemicals or ingredients in this type of mixture. Only one phase of matter is present in a homogeneous mixture. A heterogeneous mixture is a mixture where the components of the mixture are not uniform or have localized regions with different properties.