SEPARATING HOMOGENEOUS MIXTURE

Question 1

IS COFEE AN EXAMPLE OF HOMOGENOUS MIXTURE?

YES OR NO

Answer 1

YES

Question 2

TRUE OR FALSE

these solid substances do not necessarily dissolve in one another, physical processes like tumbling and crushing are used to ensure that the components are evenly
distributed ARE CALLED HOMOGENEOUS MIXTURE

Answer 2

FALSE

IT IS A HETEROGENEOUS MIXTURE SINCE NO SUBSTANCE WS DISSOLVED TO ANOTHER

Question 3

TRUE OR FALSE

Some solids, when mixed together form homogeneous mixtures.

Answer 3

TRUE

Question 4

_________________is the application of heat to a solid, so it changes to a liquid above a temperature called the melting point.

Answer 4

Melting

Question 5

WHAT IS THE homogeneous mixtures of metals?

Answer 5

ALLOYS

Question 6

GIVE OME EXAMPLE OF ALLOYS

Answer 6

Cooking utensils, metal
casings, and some electronic parts are made of alloys too.

Question 7

It is the process of turning liquids into vapor (gas) by heating.

Answer 7

Evaporation

Question 8

In this process, a solid and
liquid solution is heated until it boils.

Answer 8

Evaporation

Question 9

TRUE OR FALSE

Once the solution boils, the liquid solvent starts to evaporate and leaves behind solid solutes.

Answer 9

TRUE

Question 10

EXPLAIN THE PROCESS OF EVAPORATION

Answer 10

a solid and
liquid solution is heated until it boils.

Once the solution boils, the liquid solvent starts to
evaporate and leaves behind solid solutes.

Question 11

TRUE OR FALSE

The case for solid solvent and liquid solute separation can also not be done through evaporation.

Answer 11

false

Question 12

is a separation method wherein a liquid substance changes into a solid
form.

Answer 12

Crystallization

Question 13

form. It usually happens when the liquid from a solution has evaporated to a point beyond
the solubility limit

Answer 13

Crystallization

Question 14

is the ability of a substance to dissolve in a given amount of solvent at a specific temperature.

Answer 14

Solubility

Question 15

true or false

in solubility
Solid crystals will then grow out of the
solution because the solution is too concentrated for all the solids to remain dissolved at that temperature.

Answer 15

true

Question 16

TRUE OR FALSE

Crystallization is often done from a cold concentrated solution because most substances are more soluble when the liquid is hot

Answer 16

FALSE

Question 17

TRUE OR FALSE

During Crystallization, cooling it,
crystals form as the solubility gets less and less.

Answer 17

TRUE

Question 18

is a separation technique that makes use of the difference in boiling points
between two liquids.

Answer 18

Distillation

Question 19

In order for the technique to work, the components should have a
large enough difference in boiling points so that when one component boils, the other remains as a liquid.
WHT TECHNIQUE IS IT?

Answer 19

Distillation

Question 20

EXPLAIN HOW DISTILLATION WOK

Answer 20

EXAMPLE
WATER AND ACETONE SOLUTION
acetone has a lower boiling point (560 °C) compared with water (100 °C). When the solution is boiled, the acetone vapor boils anD evaporates first, leaving the water in the flask.

Question 21

WHAT IS THE PRODUCT OF DISTILLATION?

Answer 21

distillate

Question 22

distillation. This process is often used to separate crude oil to
different fuels, such as gasoline, kerosene, and lubricating oil.

Answer 22

Distillation

Question 23

is a separation technique that heavily relies on the differences in solubility
of each solute in a solvent.

Answer 23

Chromatography

Question 24

WHAT ARE THE TWO IMPORTANT PHASES OF CHROMATOGRAPHY?

Answer 24

mobile phase,
stationary phase,

Question 25

IN CHROMOTOGRAPHY WHAT IS THE MOBILE PHASE?

Answer 25

the solvent,

Question 26

IN CHROMOTOGRAPHY WHAT IS THE STATIONARY PHASE?

Answer 26

absorbent material that holds the liquid solution still.

Question 27

TRUE OR FALSE the stationary phase is solvent material, it allows the mobile phase to pass through it and travel along.

Answer 27

FALSE

Question 28

IN CHROMATOGRAPHY As the mobile phase runs through the stationary phase, the components of the liquid solution separate based on their solubility in the given solvent. TRUE OR FALSE

Answer 28

TRUE

Question 29

IT IS A TYPE OF CHROMATOGRAPHY which makes use of paper as the stationary phase, and a solvent (water) as the mobile phase.

Answer 29

paper chromatography

Question 30

what do you call the result of a chromatography experiment

Answer 30

chromatogram,

Question 31

name the applications of separating Homogeneous mixtures

Answer 31

are used to purify chemicals to acceptable standards (for example paracetamol, aspirin) refinery (distillation of gasoline, kerosene etc)

Question 32

homogeneous solid - liquid can be sparated by what process?

Answer 32

evaporation, Crystallization

Question 33

homogeneous liquid - liquid can be sparated by what process?

Answer 33

distillation Chromatography

Question 34

true or false Separating homogeneous mixtures plays an important role in several industrial processes.

Answer 34

TRUE

Question 35

Dilution is the amount of solute that is soluble in a particular solvent.

Answer 35

TRUE

Question 36

It is the output obtained from a chromatography experiment.

Answer 36

CHROMATOGRAM

Question 37

It is the solvent used in chromatography.

Answer 37

mobile phase,

Question 38

It is the collected pure substance after distillation.

Answer 38

distillate

Question 39

It is the ability of a substance to dissolve another substance, which is the basis for crystallization.

Answer 39

Solubility

Question 40

It refers to the adsorbent material that holds the solvent in chromatography.

Answer 40

stationary phase,

Question 41

It is the laboratory apparatus used in distillation.

Answer 41

A distilling flask

Question 42

CHOOSE THE LETTER OF YOUR ANSWER evaporation a. involves a mobile phase and a stationary phase b. involves the separation of a solid solute from a liquid solvent c. a method where the difference in boiling point is used to separate the components d. a method where the difference in melting point is used to separate the components

Answer 42

b. involves the separation of a solid solute from a liquid solvent

Question 43

CHOOSE THE LETTER OF YOUR ANSWER CHROMATOGRAPHY a. involves a mobile phase and a stationary phase b. involves the separation of a solid solute from a liquid solvent c. a method where the difference in boiling point is used to separate the components d. a method where the difference in melting point is used to separate the components

Answer 43

a. involves a mobile phase and a stationary phase

Question 44

CHOOSE THE LETTER OF YOUR ANSWER DISTILLATION a. involves a mobile phase and a stationary phase b. involves the separation of a solid solute from a liquid solvent c. a method where the difference in boiling point is used to separate the components d. a method where the difference in melting point is used to separate the components

Answer 44

c. a method where the difference in boiling point is used to separate the components

Question 45

CHOOSE THE LETTER OF YOUR ANSWER CRYSTALLIZATION a. involves a mobile phase and a stationary phase b. involves the separation of a solid solute from a liquid solvent c. a method where the difference in boiling point is used to separate the components d. a method where the difference in melting point is used to separate the components

Answer 45

d. a method where the difference in melting point is used to separate the components