how can mixtures be separeted?

Answer 1

By their physical differences. Salt is water soluble, sand is not. Iron particles are attracted by amagnet, salt or sand is not. Two immiscible liquids like "oil" and "water" can be decanted (poured off from) one another.

Answer 2

Mixtures are physical combinations of any number of materials and have no definite proportion.
Mixtures can be separated by mechanical or physical means... such as ...Filtration, Solution, Distillation ... etc.

Example: a mixture of salt water and sand can first be separated by filtering out the sand particles. The salt water can then be separated by distillation i.e. vaporisation and recondensation of the water will leave the salt in the bottom of the distillation apparatus.

Atmospheric air is a mixture of mainly Nitrogen and Oxygen with small amounts of other gases, all of which can be separated by physical means by High compression, Super-cooling and Distillation.

Answer 3

A common way to separate mixtures is with a centrifuge. The mixture is placed in a test tube and spun at very high speed. Denser material sink to the bottom of the tube.

Another way, depending on what is in the mix, is by boiling. different liquids in the mixture will boil at different temperature.

Filters (like those used for coffee) can also be used to separate the liquid and fine particles, which will go through the filter, from solids with large particles.

Answer 4

You can use distillation to separate some mixtures, where one compound has a much lower boiling point than others.

Answer 5

you could try shocking the substance to separate it or let it evaporate