Question

1. The process of evaporating a liquid and condensing the vapors to form a pure substance_______.2. Used to separate the various compounds of a liquid mixture______.3. Easily changes to a gas or vapor______.4. A chemical compound composed of only hydrogen and carbon______.

Answer 1

Answer:

The process of evaporating a liquid and condensing the vapors to form a pure substance_=> condensation

2. Used to separate the various compounds of a liquid mixture______ => distillation

3. Easily changes to a gas or vapor______ => sublimation

4. A chemical compound composed of only hydrogen and carbon______ => Hydrocarbon

Explanation:

Condensation process is used to recover a solvent from solution

Simple Distillation is used to separate two or mor liquid mixtures whose boiling points are far a part. Example ethanol and water.

Fractional distillation is used if the liquid mixtures have close boiling point

Sublimation is a process where by solid substance change directly to gaseous phase when heated.

Hydrocarbon is a compound that contains only two elements, carbon and hydrogen.

Answer 2

1. The process of evaporating a liquid and condensing the vapors to form a pure substance is called condensation.
2. Distillation is used to separate the various compounds of a liquid mixture
3. Sublimation easily changes to a gas or vapor.
4. A chemical compound composed of only hydrogen and carbon is called hydrocarbons

Different separation techniques

Separation techniques are used in a chemical laboratory to dissociate a mixture into its various components. There are different separation techniques which include

• Distillation: This is used to separate the various compounds of a liquid mixture by using the difference in the boiling points of the liquids.

• Condensation: This is used in the separation of salt from water. It is the process of evaporating a liquid and condensing the vapors to form a pure substance.

• Sublimation: This occurs when a solid changes directly to a gaseous state. The mixture of camphor and sodium chloride can be separated by the process of sublimation.

A compound that contains only hydrogen and carbon is known as hydrocarbons in organic chemistry.

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