Methods of Separation

Question 1

It is the process of separating the insoluble solid from the liquid substance by allowing the liquid to pass through a porous material

Answer 1

Filtration

Question 2

porous material

Answer 2

filtering agent

Question 3

The solid particles which are retained in the filter paper of filtration

Answer 3

residue

Question 4

clear liquid which passes through a filtering agent such as filter paper

Answer 4

filtrate

Question 5

To transfer the mixture (liquid) from the beaker into the funnel, you have to mix thoroughly the mixture using a ______ so that no solid substance will be left behind

Answer 5

stirring rod

Question 6

used as a support in filtration

Answer 6

glass funnel

Question 7

used to guide the mixture into the funnel to avoid spillage

Answer 7

stirring rod

Question 8

This is a method used to separate the liquid layer known as supernatant and a heavy insoluble solid known as precipitate by allowing the said solid to settle at the bottom of the container then the liquid above the solid is poured off carefully into another container.

Answer 8

Decantation

Question 9

liquid layer

Answer 9

supernatant

Question 10

the mixture is being set aside and given enough time the precipitate to settle at the bottom of the container such as a beaker.

Answer 10

Decantation

Question 11

This involves the use of forceps, sieves, magnet and other similar tools to separate the components of mixtures. Sand and gravel are separated by passing the mixture over a wire screen. the involved
substances are mostly solids that can be separated manually.

Answer 11

Mechanical Separation

Question 12

It is the process that uses a motor device known as centrifuge that speeds up the settling of the precipitate using centrifugal or rotating motion. As the mixture inside the test tube of the centrifuge is subjected to centrifugal force, the heavier component settles at the bottom and the less dense component settles at the upper portion.

Answer 12

Centrifugation

Question 13

This is a process that involves the evaporation and condensation of a liquid solvent from a mixture or solution. This method uses the difference in boiling points of the components of a mixture. The more volatile liquid in the mixture boils first, evaporates, then condenses.

Answer 13

Distillation

Question 14

is the liquid formed from the condensation of the vapor.

Answer 14

distillate

Question 15

This process uses the difference in the degrees to which substances are absorbed on the surface of an inert substance such as a filter paper. A drop of ink or extract will be separated into different components if it is placed at the end of a filter paper and the tip of the paper is allowed to barely touch the solvent.

Answer 15

Chromatography

Question 16

This is a chemical decomposition or breakdown produced by passing an electric current through a liquid or solution containing ions. Example of this is the separation of oxygen atom to the hydrogen atoms from the water molecules. In doing this method, the positive and negative electrodes should be submerged completely in the liquid to effectively separate the ions.

Answer 16

Electrolysis