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.

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.

Explanation:

distillationThe process of evaporating a liquid and condensing the vapors to form a pure substance.

fractional distillationUsed to separate the various compounds of a liquid mixture.

hydrocarbona chemical compound composed of only hydrogen and carbon

volatileEasily changes to a gas or vapor.

particle   p is an electron and particle q is a neutron