Meaning of Mixture

What is Mixture:

A mixture is the combination or union of two or more elements or components that can be found in any state of matter.

Depending on the nature of the elements, the mixture can be musical, social, physical, chemical or of other substances.

Musical mixtures are called the combination of musical genres or music extracts that are made through a sound recording and editing process.

Social mixtures generally indicate diversity in a population or society, such as cultural, ethnic, or social class mixtures that create cultural diversity and tolerance.

Color mixes are used to create paints of a special color, for example, violet is a mix between red and blue or CMYK color mixes (Cyan, Magenta, Yellow, Key) for color printing offset.

Physical mixtures are those in which there is no union of the elements but there is proximity. Physical mixtures do not create new substances and do not generate chemical reactions such as water, soil, and sand.

Physical mixtures often influence the physical properties of substances.

Chemical mixtures, on the other hand, are those in which the elements join each other and generate chemical reactions. These reactions often create new substances, such as mixing chemicals to create alloys.

In this sense, chemical mixtures alter the chemical properties of substances.

In general, all mixtures are classified into homogeneous mixtures, when it is not possible to distinguish the elements that compose it, and heterogeneous mixtures, when it is possible to differentiate their composition.

Mix types

From the mixture of the different substances, types of mixtures can be obtained. The most commons are:

  • Alloys: combination of metallic elements.
  • Solutions: mixture of two pure substances that do not react with each other.
  • Colloids: a mixture of small particles that are suspended in a fluid. For example, smoke.
  • Suspensions: a mixture of a solid made up of small particles, such as dust, that is united with a liquid substance.

In this sense, we can notice that in our daily lives we find many mixtures, for example, a body lotion, a soup, a salad, the concrete of the walls, the air, a mixture of colors, among others.

Classification of mixtures

There are two classes of mixtures that are called homogeneous and heterogeneous.

Homogeneous mixture

The homogeneous mixture is a uniform or consistent combination in all the parts that form the solution, in which a solute dissolves in a solvent. For example, when a tablespoon of sugar is dissolved in a glass of water.

Other examples of a homogeneous mixture are oil, air, milk, mayonnaise, among others.

Heterogeneous mixture

The heterogeneous mixture lacks uniformity, so that the substances or elements that make up the mixture can be distinguished. For example, in granite you can see the stones that compose it, in a salad the ingredients are differentiated or the blood whose components can be differentiated from each other.

Mixture separation methods

The methods of separating the elements of a mixture are different if it is a homogeneous mixture or a heterogeneous mixture and will help to determine if it is one or the other.

For homogeneous mixtures the following methods are used to separate the solute from the solvent:

  • Extraction: differentiation of solubility against a solvent, eg separation of iodine from water.
  • Chromatography: interaction of solutes in different phases, for example, obtaining classes of chlorophyll.
  • Crystallization: solidification of the solute, for example, obtaining sugar from water.
  • Evaporation: increasing the temperature to remove the solvent, for example, sea salt.
  • Distillation: use of boiling points, for example essential oils.

In heterogeneous mixtures we can find the following separation methods:

  • Filtration, for example, of drinking water that separates the solid from the liquid.
  • Sifting, for example, for building materials, obtaining sand from silt.
  • Spinning, for example, wet clothes in the washing machine.
  • Magnetization, for example, of metals from other solids
  • The decantation, for example, of wine sediments.
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