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.

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.