Science, asked by piyushkumar3478, 1 month ago

1. Explain the following terms : a. Sedimentation b. Supernatant liquid 2. Identify homogeneous and heternoon c. Decantation d. Distillation, and e. Sublimation​

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Answered by singharyabhaskar
1

Answer:

(A)  The process of particles settling to the bottom of a body of water is called sedimentation. ... Layers of sediment in rocks from past sedimentation show the action of currents, reveal fossils, and give evidence of human activity. Sedimentation can be traced back to the Latin sedimentum, "a settling or a sinking down."

(B) The supernatant is the clear liquid that lies above the solid residue after centrifugation, precipitation, crystallization or settling. The liquid is normally free of precipitate and has a lower density. ... Supernatant is also known as supernate.

(C) A homogeneous mixture is a mixture in which the composition is uniform throughout the mixture. ... All solutions would be considered homogeneous because the dissolved material is present in the same amount throughout the solution. One characteristic of mixtures is that they can be separated into their components.

A heterogeneous mixture is a mixture in which the composition is not uniform throughout the mixture. ... A heterogeneous mixture consists of two or more phases. When oil and water are combined, they do not mix evenly, but instead form two separate layers. Each of the layers is called a phase.

(D) distillation, process involving the conversion of a liquid into vapour that is subsequently condensed back to liquid form. It is exemplified at its simplest when steam from a kettle becomes deposited as drops of distilled water on a cold surface.

(E) Sublimation is the conversion between the solid and the gaseous phases of matter, with no intermediate liquid stage. For those of us interested in the water cycle, sublimation is most often used to describe the process of snow and ice changing into water vapor in the air without first melting into water.

Explanation:

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