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Examples of homogeneous mixtures:
- Coffee with milk and sugar
- soft drink and alcohol
- Jelly
- Dough for hot cakes
- Tea with honey
heterogeneous mixtures
A heterogeneous mixture is one in which the composition is uniform throughout the mixture. For example, a vegetable soup would be a smorgasbord. Any tablespoon of the soup will contain a different amount of vegetables and other components of the soup.
A phase is any part of the sample that has a uniform composition and properties. By definition, a pure substance or homogeneous mixture consists of only one single phase, while a heterogeneous mixture consists of two or more phases. When water and oil combine, they do not mix, but form two separate layers, each layer is called a phase.
Examples of heterogeneous mixtures:
- Vegetable soup
- Cereal with milk
- Oreo cookies
- soft drink with ice
- bread with mayonnaise
How can we distinguish a homogeneous mixture from a heterogeneous one in a simple way?
In most cases it can be done with the naked eye. If we cannot distinguish all the components that are in the mixture or it is not possible for us to separate them, we would be talking about a homogeneous mixture; however, if we can distinguish and name each of the components or elements of the mixture, and extract them from it, it would be a heterogeneous mixture.
Separation of the elements of a mixture
There are a number of physical procedures that can separate the components of a mixture:
- Filtration
- settling
- Dissolution
- Evaporation
- magnetic separation
- sieving
- centrifugation
Sources
- Homogenous and Heterogenous Mixtures | Chemistry for Non-Majors. (2021). Retrieved 5 April 2021, from https://cutt.ly/wcRQi0n
