Matter and separating techniques

Question 1

Why do solids not move?

Answer 1

because there are strong forcers between the particles which holds them close together in a fixed position

Question 2

what is condensing?

Answer 2

to change or make something change from a gas to a liquid or solid state

Question 3

What is a solution?

Answer 3

is a mixture of a solute and a solvent that does not separate out.

Question 4

what is a solute?

Answer 4

is the substance being dissolved

Question 5

what is a solvent?

Answer 5

is the liquid its dissolving into

Question 6

what is a saturated solution?

Answer 6

a solution where the maximum amount of solute has been dissolved, so no more solute will dissolve in the solution.

Question 7

what are the three states of matter?

Answer 7

solid, liquid and gas

Question 8

What is bromine

Answer 8

bromine gas is a brown, strongly smelling gas. You can use it to demonstrate diffusion

Question 9

what is the process of solid to gas

Answer 9

subliming

Question 10

solubility

Answer 10

is the ability to dissolve

Question 11

what is insolubility

Answer 11

it means the substance doesn’t dissolve

Question 12

what is diffusion?

Answer 12

diffusion is the gradual movement of particles from places where there are lots of them to places where there are fewer.

Question 13

what does chromatography do

Answer 13

enables the separation, identification, and purification of the components of a mixture for qualitative and quantitative analysis.

Question 14

why do you need chromatography.

Answer 14

enables the separation, identification, and purification of the components of a mixture for qualitative and quantitative analysis.

Question 15

what is the equation of the RF value

Answer 15

divide the distance travelled by the component by the distance travelled by the solvent.

Question 16

what is the difference between a mixture of Atoms and chemically bonded?

Answer 16

mixtures are composed of nonbonded substances.

Question 17

what is an atom

Answer 17

the smallest particle of a chemical element that can exist.

Question 18

what is a molecule

Answer 18

A molecule is a group of two or more atoms held together by attractive forces known as chemical bonds.

Question 19

what is distillation

Answer 19

Distillation, also classical distillation, is the process of separating the component substances of a liquid mixture of two or more chemically discrete substances

Question 20

what is crystallisation

Answer 20

Crystallization is the process by which solids form, where the atoms or molecules are highly organized into a structure known as a crystal.