CHEMQ1_SeparationTechniques

Question 1

Which separation technique is described as allowing the mixture/solution to pass through a porous material

Answer 1

Filtration

Question 2

Which separation technique uses magnets, forceps, and sieves?

Answer 2

Mechanical Separation

Question 3

Which separation technique will be helpful in separating oil and water considering the difference in their densities?

Answer 3

Decantation

Question 4

Which separation technique will be helpful in retrieving salt and water from a salt solution?

Answer 4

Distillation

Question 5

have a definite (constant) composition
and distinct properties. They differ from one another in composition and can be identified
by their appearance, smell, taste, and other properties

Answer 5

Pure substance

Question 6

is a combination of two or more substances
in which the substances retain their distinct identities

Answer 6

mixture

Question 7

__________ do not have constant
composition. Any ___________ can be created and then separated by physical means into pure
components without changing the identities of the components

Answer 7

mixture

Question 8

is a substance
that cannot be separated into simpler substances by chemical means.

Answer 8

element

Question 9

is a substance
composed of atoms of two or more elements chemically united in fixed proportions

Answer 9

compound

Question 10

shows the elemental parts of a compound

Answer 10

chemical formula

Question 11

a mixture is _____________ if the composition of the mixture is the same throughout
appearing clear

Answer 11

homogeneous

Question 12

a mixture is ___________ if the composition is not
uniform.

Answer 12

heterogeneous

Question 13

previously classified either as heterogeneous and homogeneous

Answer 13

mixture

Question 14

mixtures can be classified into three:

Answer 14

solution, suspension, colloid

Question 15

mixtures that are homogenous; clear

Answer 15

solution

Question 16

always made up of solute and solvent

Answer 16

solution

Question 17

the component being dissolved; the substance exisinting in small amounts compared to solvent

Answer 17

solute

Question 18

______ determines the type of solution regardless of the solute. if it’s solid then the solution will take a solid form; goes also with liquid and gas.

Answer 18

solvent

Question 19

ability to scatter visiblelight

Answer 19

tyndall effect

Question 20

heterogeneous mixture; particles are relatively big, >1000nanometers, visible to the naked eye, particles settle at the BOTTOM

Answer 20

suspension

Question 21

process of separating the insoluble solid from the liquid component by allowing the liquid to pass through a porous material acting like a filtering agent

Answer 21

filtration

Question 22

process of separating a heavy insoluble solid from the liquid component by allowing the heavy particles remain first at the bottom; liquid is poured off slowly to the other container

Answer 22

decantation

Question 23

process that involves the use of forceps, sieves, magnets, and other tools

Answer 23

mechanical separation

Question 24

used to separate a mixture of solid and liquid by transforming the liquid component to a gas through heating

Answer 24

evaporation

Question 25

process used to separate a mixture of solid and liquid, and a mixture of liquid through evaporation and condensation to recover the liquid component.

Answer 25

distillation

Question 26

liquid formed from the condensation of the vapor

Answer 26

distillate

Question 27

catching the vapor and turning it back to its liquid state

Answer 27

distillation

Question 28

separating the components of the mixtures on the basis of the difference of the degrees to which substances are absorbed on the surface of an inert substance such as filter paper.

Answer 28

chromatography

Question 29

commonly used wherein alcohol and water act as a solvent (mobile phase) while the paper acts as a stationary phase

Answer 29

paper chromatography

Question 30

separating of a solid substance from a solution thru the means of centrifuge

Answer 30

centrifugation

Question 31

a motor device that speed sup the settling of the precipitate using centrifugal or rotating motion

Answer 31

centrifuge