how can substances in a mixture be separated?

Question

give examples

Answer 1

There are various techniques that can be used for separating various substances.

Distillation-liquids heated to a boil at which point the more easily vaporizable, volatile, vaporize. The volatile liquid is then recondensed in a condenser and collected in a separate flask.
Decanting-with sand and water you could carefully pour off the water into another container Note: It may help to centrifuge mixtures before doing this.
Filtration-If a mixture is composed of an isoluble solid and a liquid, the two can be separated by passing the mixture through filter paper ussually held in a funnel

Answer 2

It depends on the mixture. For instance, a mixture of sand and pebbles could be run through a screen sifter. A mixture of sugar and sand could be dissolved in water and then filtered. Mixtures are separated by physical means, not chemical.

Answer 3

Dispersed powdered solids of differing density can be settled out, or if the particles of of different size, they can be separated by screening. Different gases can be separated by ultracentrifuge or gaseous diffusion; these techniques have been in the news because
U(235)F6 is concentrated from the more plentiful U(238)F6. Liquids can also be separated by distillation; the more volatile liquid is more concentrated in the vapor phase that it is in the liquid phase, and this is the basis for processing crude oil to pull off the low aliphatics (butane, pentane), the gasoline components (branched pentanes through octanes), the kerosine components (unbranched hexanes through decane), and the different higher-molecular weight oily liquids. This is also used in the production of alcoholic products in excess of 14 percent alcohol.

Answer 4

what kind of mixture suspension, colliod, sollution? how big are the particles in the mixture if they are small they can be dissolved or heated (salt (solute) and water (solvent)) a solution) homogeneous. if they are big like in gel-o and fruit mixed you can pick them out suspension heterogeneous.