Answer the following in detail.
What are mixtures? Give three characteristics of mixtures.
2. Differentiate between a compound and a mixture.
3. State the need for separation of mixtures.
4. Explain the method of separating magnetic constituents from a mixture.
5. Describe the process of sublimation used to separate a mixture.
6. Explain the techniques of separation involved in a filtration b. evaporation.
Answers
Explanation:
In chemistry, a mixture is a material made up of two or more different substances which are physically combined. A mixture is the physical combination of two or more substances in which the identities are retained and are mixed in the form of solutions, suspensions and colloids.
3.A separation process is a method that converts a mixture or solution of chemical substances into two or more distinct product mixtures. ... Often these raw materials must go through a separation before they can be put to productive use, making separation techniques essential for the modern industrial economy.
4.Magnetic separation is the process of separating components of mixtures by using magnets to attract magnetic materials. ... Due to the magnets, magnetic particles are being drifted by the movement of the drums. This can create a magnetic concentrate (e.g. an ore concentrate).
5.Sublimation is a separation process that entails heating a mixture of solids, where one of the solids transitions from solid to gas without passing through the liquid state. The vaporized solid is then reclaimed by cooling the vapor which reverts back to its initial solid state.
6.Filtration is a method for separating an insoluble solid from a liquid. When a mixture of sand and water is filtered: the sand stays behind in the filter paper (it becomes the residue ) the water passes through the filter paper (it becomes the filtrate )
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