Particles and Mixtures

Question 1

solid to gas =

Answer 1

subliming

Question 2

gas to liquid =

Answer 2

condensing

Question 3

liquid to gas =

Answer 3

evaporating

Question 4

liquid to solid =

Answer 4

freezing

Question 5

solid to liquid =

Answer 5

melting

Question 6

Why does the ammonia and hydrogen chloride experiment work?

Answer 6

particles of ammonia are smaller and lighter then the particles of hydrogen chloride so they diffuse through air more quickly

Question 7

Solution ?

Answer 7

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

Question 8

solute?

Answer 8

substance being dissolved

Question 9

solvent =

Answer 9

liquid its dissolving into

Question 10

Saturated solution?

Answer 10

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

Question 11

solubility?

Answer 11

a measure of how much solute will dissolve in a solvent

Question 12

solubility equation?

Answer 12

mass of solid/ mass of water removed x100

Question 13

What do atoms contain?

Answer 13

protons, neutrons and electrons

Question 14

mass of proton?

Answer 14

1

Question 15

mass of nuetron ?

Answer 15

1

Question 16

mass of electron?

Answer 16

0.0005

Question 17

charge of proton?

Answer 17

1

Question 18

charge of neutron?

Answer 18

0

Question 19

charge of electron?

Answer 19

-1

Question 20

Which number is on the top of the element?

Answer 20

mass number

Question 21

mass number =?

Answer 21

total protons and neutrons

Question 22

atomic number ?

Answer 22

how many protons

Question 23

isotopes?

Answer 23

different atomic forms of the same element, which have the same number of protons but different number of electrons

Question 24

element defination?

Answer 24

consist of one type of atom

Question 25

compound definition?

Answer 25

a substance that is made of two or more different elements which are chemically joined together - they are very difficult to separate

Question 26

Mixture definition?

Answer 26

no chemical bond between different parts of a mixture - is not a pure substance

Question 27

What is filtration used for?

Answer 27

to separate an insoluble solid from a liquid

Question 28

What is crystallisation used for?

Answer 28

separates a soluble solid from a solution

Question 29

What is chromatography used for?

Answer 29

separate out mixtures

Question 30

How do you calculate Rf?

Answer 30

distance travelled by solute / distance travelled by solvent