States of Matter flashcards

Question 1

Describe the arrangement of particles in a solid

Answer 1

Fixed position, regular lattice arrangement.

Question 2

Describe the movement of particles in a gas

Answer 2

Move quickly in random directions

Question 3

Define sublimation

Answer 3

Solid changing state to a gas

Question 4

Process of a liquid changing to a gas

Answer 4

Evaporation

Question 5

Define chemical purity

Answer 5

Something made up of only one type of atom or compound.

Question 6

What type of substance melts over a range of temperatures?

Answer 6

Mixture

Question 7

State what happens to the forces between particles during condensation

Answer 7

Become strong enough to hold particles closer together

Question 8

Predict the state of a substance at 1000C if the melting point is 801C and the boiling point is 1413C

Answer 8

Liquid

Question 9

Name the process used to separate an insoluble solid from a liquid

Answer 9

Filtration

Question 10

Name the process used to separate soluble solid from a solution

Answer 10

Crystallisation

Question 11

Name the process used to seperate a mixture of soluble substances and identify them

Answer 11

Chromatography

Question 12

Name the two phases of chromatography

Answer 12

Mobile phase and stationary phase

Question 13

Equation for calculating RF values

Answer 13

distance travelled by solute/ distance travelled by solvent

Question 14

What is potable water?

Answer 14

Water that is fit to drink

Question 15

How can you get potable water from sea water?

Answer 15

Distillation or reverse osmosis

Question 16

During fractional distillation which liquid will evaporate first?

Answer 16

Liquid with lowest boiling point

Question 17

Why do we tend not to use the distillation of seawater to obtain potable water in the UK?

Answer 17

Requires a lot of energy so it is expensive

Question 18

3 stages of water purification

Answer 18

Filtration, Sedimentation and Chlorination

Question 19

State process of liquid changing to solid

Answer 19

Freezing

Question 20

Name the process used to separate a solvent from a solution

Answer 20

Distillation