A "hard method of separation" is not an expression in chemistry.
Using the separating funnel method can be separated mixtures of liquids with different densities.
There are several different ways and procedures of separating mixtures, though, some mixtures areirreversible, and can permanently be combined. A few ways of separating mixtures is through evaporation, filtration, sieving, gravity separation, distillation, condensation, froth flotation, magnetic separation, chromatography, and centrifuging (http://www.slideshare.net/brittgow/separating-mixtures-1247457). Also certain chemical reactions can separate mixtures, or create substances, i.e. acid+base=salt+water etc. (If this is no help I'm sorry just look up separating mixtures on Google).
To separate mixtures by boiling, you can use the process of distillation, which relies on differences in boiling points of the components. When the mixture is heated, the component with the lower boiling point vaporizes first. This vapor is then collected and condensed back into a liquid form, effectively separating it from the other components that remain in the original mixture. This method is commonly used for separating liquids or liquid-solid mixtures.
Separating mixtures can help to reduce waste by allowing components to be reused or recycled. This reduces the amount of material that ends up in landfills or in the environment. Additionally, separating mixtures can help to prevent contamination of soil, water, and air by harmful substances.
The most widely used method for separating mixtures at home is filtration. This technique is commonly employed when making coffee or tea, where solid particles are separated from liquid. Additionally, sedimentation and decantation, such as when separating water from sand or oil from water, are also frequent household practices. These methods are simple, effective, and require minimal equipment.
Using the separating funnel method can be separated mixtures of liquids with different densities.
Paper chromatography is a method.
By this method iron (being ferromagnetic) is extracted from mixtures.
Filtration is the best method.
This method is called paper chromatography.
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For example filtration, manual collection.
An insoluble solid can be separated by filtration from the liquid.
You think probable to a chromatographic method or to decantation.
that is the method that the method is a method
Chromatography
This is a very simple method to separate immiscible liquids with different densities.