particles and mixtures

Question 1

arrangement of solid particles

Answer 1

regular arrangment
touching/in contact

Question 2

arrangement of liquid particles

Answer 2

irregular arrangment
touching/in contact

Question 3

arrangement of gas particles

Answer 3

irregular arrangment
far apart/nit in contact

Question 4

movement of solid particles

Answer 4

vibrating
fixed position

Question 5

movement of liquid particles

Answer 5

slide over each other
random directions

Question 6

movement of gas particles

Answer 6

fast
random directions

Question 7

kinetic energy of solid particles

Answer 7

low

Question 8

kinetic energy of liquid particles

Answer 8

medium

Question 9

kinetic energy of gas particles

Answer 9

high

Question 10

shape of solid particles

Answer 10

holds own shape

Question 11

shape of liquid particles

Answer 11

take shape of bottom of container

Question 12

shape of gas particles

Answer 12

takes shape of whole container

Question 13

flow of solid particles

Answer 13

doesn’t flow

Question 14

flow of liquid particles

Answer 14

flows

Question 15

flow of gas particles

Answer 15

flows

Question 16

does a gas compress?

Answer 16

yes

Question 17

does a solid compress?

Answer 17

no

Question 18

does a liquid compress?

Answer 18

no

Question 19

what happens if a solid is heated?

Answer 19

• its temperature rises until it reaches its melting point
• particles gain energy and vibrate more

Question 20

solid to gas

Answer 20

sublimation

Question 21

gas to solid

Answer 21

deposition

Question 22

gas to liquid

Answer 22

condensing

Question 23

liquid to gas

Answer 23

evaporation

Question 24

liquid to solid

Answer 24

freezing

Question 25

solid to liquid

Answer 25

melting

Question 26

define diffusion

Answer 26

the random mixing and moving of particles from an area of high concentration to an area of low concentration

Question 27

what temperature does water boil at?

Answer 27

100C

Question 28

what forms when a soluble solid dissolves in water?

Answer 28

solution

Question 29

what is a soluble solid also known as?

Answer 29

solute

Question 30

name the 2 types of distillation

Answer 30

simple fractional

Question 31

name 2 techniques of separating mixtures

Answer 31

filtration evaporation

Question 32

explain how chromatography works (4 marks)

Answer 32

- solute rises top the chromatography paper, taking the ink spots with it - ink that's more soluble in the solvent and less attracted to the paper will rise up the chromatogram more - inks that are less soluble in the solvent and more attracted to the paper will rise up the chromatogram less