Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Chemistry Year 9 > States Of Matter > Flashcards

States Of Matter Flashcards

(56 cards)

Start Studying
1
Q

What structure does a solid have?

A

Regular lattice structure (fixed position)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What holds the particles of a solid close together?

A

Strong forces of attraction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Solids have a …

A

Definite shape and volume

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Particles cannot move around in a solid but can …

A

Move around
Vibrate backwards and forwards

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

When happens if your heat the particles of a solid?

A

They vibrate more which weakens the forces between them

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What happens if the temp reaches the solid’s melting point?

A

The particles have enough energy to break free of their bonds
Solid —> liquid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is the structure in a liquid?

A

Particles are close together but can move
Arranged randomly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Forces in a liquid

A

Weak forces of attraction - free to move
—> fairly compact (usually stick together)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Liquids have a …

A

Definite volume but can change shape
—> flow to fit a container

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What happens if you heat a liquid?

A

The particles gain more energy and they will move around faster which weakens the forces holding them together

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What happens if the temp reaches the liquid’s boiling point?

A

The particles have enough energy to break the bonds holding them close together
Liquid —> gas

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What structure does a gas have?

A

Free to move around

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Forces in a gas

A

Very weak forces of attraction

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Gases don’t keep a …

A

Definite shape or volume
—> always fill a container as they spread out as much as possible

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Gases are constantly …

A

Moving with random motion
But they travel in straight lines

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What happens if you heat a gas?

A

The particles get more energy and travel faster
—> gas will expand if the container is expandable
—> if in a fixed container, the pressure will increase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What happens if you cool a gas down?

A

The particles won’t have enough energy to overcome the forces of attraction
—> bonds will start to form between the particles
—> condensing the gas into a liquid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What happens if you cool down a liquid?

A

The particles won’t have enough energy to overcome the forces of attraction
—> even more bonds form, fixing the particles in place
—> freezing the liquid into a solid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Solid —> liquid

A

Melting

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Liquid —> gas

A

Boiling/evaporatinf

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Gas —> liquid

A

Condensing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Liquid —> solid

A

Freezing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Solid —> gas

25
Q

What temperature does ice melt at?

Study These Flashcards
A

0 degrees celsius

26
What temperature does water boil at?
100 degrees celsius
27
What temperature does steam condense at?
100 degrees celsius
28
Gas —> solid
Deposition
29
What temperature does water freeze at?
0 degrees celsius
30
Decreasing temperature means the particles …
Lose energy
31
List the three states of matter in increasing order of particle energy
Solid, liquid, gas
32
Increasing temperature means the particles …
Gain energy
32
List the three states of matter in increasing order of density
Gas, liquid, solid
33
Why is the particle model perfect?
Particles aren’t: solid, inelastic or spheres —> instead they are: atoms, ions or molecules Doesn’t include details of the forces between particles —> e.g. doesn’t consider how strong they are or how many of them there are
34
What is diffusion?
The movement of particles from an area of higher concentration to an area of lower concentration —> happens because particles move around randomly, so overtime will spread out
35
What does diffusion only occur in?
Liquids and gases (The particles in solids are unable to move)
36
Diffusion of bromine gas in air
Quickly diffuses from the bottom tube into the top tube and at the end will be evenly distributed
37
Diffusion and reaction of hydrogen chloride and ammonia (step reaction)
1) both evaporate into gases and begin diffusing along the glass tube towards each other 2) when they meet, they’ll react together to form a white ring of ammonium chloride (NH4Cl)
38
Why does the ring of ammonium chloride form closer to the end with the hydrochloric acid?
Because the aqueous ammonia particles are smaller than the HCl particles and so diffuse more quickly —> the aqueous ammonia particles travel further before it meets the HCl particles to react
39
Diffusion of potassium manganate (VII) in water
Slowly the purple potassium manganate (VII) will diffuse evenly throughout the beaker
40
What is a solute?
The substance that dissolves in a solvent
41
What is a solvent?
The liquid that the solute dissolves in
42
What is a solution?
The mixture of the dissolved solute and the solvent it is dissolved in
44
What does insoluble mean?
A chemical which does not dissolve
45
What is a saturated solution?
A solution in which the maximum amount of solute has been dissolved (No more solute will dissolve)
46
What does solubility mean?
How much of a solute can dissolve in a solvent before the solution becomes saturated
47
What does concentrate mean?
A solution containing a large amount of dissolved solute
48
What does dilute mean?
A solution containing a small amount of dissolved solute
49
Equation for concentration (g/dm3)
Mass of dissolved solute (g) ————————————— Volume of solvent (dm3)
50
How do you convert cm3 into dm3?
Divide by 1000
51
Most substances become more soluble at …
Higher temperatures
52
Equation for solubility (g/100g)
Mass of solute ——————— x100 Mass/volume of solvent
53
Solid (solubility)
Temperature increases: solubility increases Temperature decreases: solubility decreases
54
Liquids (solubility)
Temperature increases: solubility increases Temperature decreases: solubility decreases
55
Gases (solubility)
Temperature increases: solubility decreases Temperature decreases: solubility increases
56
In which state does diffusion occur more quickly?
Gas
57
What does soluble mean?
A chemical which does dissolve

Chemistry Year 9 (5 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions