Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Chemistry test revision > C1 The particulate nature of matter > Flashcards

C1 The particulate nature of matter Flashcards

You may prefer our related Brainscape-certified flashcards:
AP® Chemistry flashcards Periodic Table flashcards Chemistry 101 flashcards Organic Chemistry 101 flashcards
1
Q

Properties of solids

A

Fixed shape and volume; Cannot be compressed; Particles bound together

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

Properties of liquids

A

Fixed volume; No fixed shape; Cannot be compressed; Particles bound together

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

Properties of gases

A

No fixed shape and volume; Can be compressed; Particles bound together

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

Structure of a solid

A

packed in an ordered way(tightly); particles can vibrate in place but cannot move out of place

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

Reaction from Solid to Liquid

A

Melting

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

Reaction from Liquid to Gas

A

Evaporation

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

Reaction from Liquid to Solid

A

Freezing

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

Reaction from Gas to Liquid

A

Condensation

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

Reaction from Solid to Gas

A

Sublimation

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

Define movement of particles

A

All particles have some energy. This makes them all move, even in solids; If a particle had no energy it would stop.(unachievable)

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

Structure of a Liquid

A

Particles packed tightly; in random order; particles can move/flow over each other; particles fill the bottom of the container they are in

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

Structure of a Gas

A

Particles far apart; packed in random order; particles can move around quickly and freely

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

Define Atom

A

a particle; all matter is made of them; smallest piece of matter

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

Define Molecule

A

More than one atom bonded together

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

Define Ion

A

An atom/molecule that has a positive/negative electrical charge

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

Define Element

A

Only made of one type of atom

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

Define Compound

A

Made up of two or more types of atoms chemically bonded together

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

Mass of Proton

A

1

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

Mass of Neutron

A

1

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

Mass of Electron

A

1/2000

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

Charge of Proton

A

+1

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

Charge of Neutron

A

0

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Charge of Electron

A

-1

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

What is Diffusion?

A

The movement of particles from a high concentrated area to a low concentrated area.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

Why do particles diffuse?

A
  • they are moving
  • perfume particles move randomly in the air
  • mix with the air particles which are also moving
  • gradually spread out through the air particles
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

Independent variable (IV)

A

a thing that I can change in the investigation; x-axis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Dependent variable (DV)

A

a thing that I can measure; y-axis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Control variable (CV)

A

anything that I must keep the same to make it a fair test

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

What is a physical change?

A

same substance, different state

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

what is a chemical change?

A

atoms are rearranged and a new substance is made

31
Q

Melting is an example of _____ change.

A

physical

32
Q

Burning is an example of _____ change.

A

chemical

33
Q

Is physical change reversible?

A

Yes

34
Q

Is chemical change reversible?

A

No

35
Q

What happens during a chemical change?

A

Bubbles are given off(effervescence); Colour change; Precipitate(solid) formed; heat/light given off

36
Q

properties of metals

A

hard; shiny(lustrous); metallic; magnetic; conducts electricity; ductile(stretches into a wire); malleable; high melting/boiling points

37
Q

properties of non-metals

A

dull; poor conductors(heat + electricity); low melting/boiling points; brittle

38
Q

What is a Solute?

A

Substance that is dissolved

39
Q

What is a Solvent?

A

Substance which does the dissolving

40
Q

What is a Solution?

A

Resulting mixture

41
Q

What are Isotopes?

A

atoms of the SAME ELEMENT with SAME number of PROTONS but DIFFERENT number of NEUTRONS; same chemical properties but different physical properties

42
Q

Can chemical reactions be reversed?

A

All chemical reactions are reversible.

43
Q

Define Ionic bond

A

The electrostatic attraction(makes an attraction/force) between oppositely charged ions.

44
Q

Define Covalent bond

A

a shared pair of electrons; only for non metals

45
Q

Conduct electricity =

A

Movement of charge

46
Q

What is an Ionic lattice?

A

An ordered 3D structure

47
Q

What are macromolecules?

A

Molecules that contain a very large number of atoms; giant covalent lattice; carbon atoms arranged differently

48
Q

Carbon has two forms which are classed as giant covalent carbon allotropes:

A

Diamond and Graphite

49
Q

In diamond, the carbon atoms are arranged in a ____________. Every carbon is bonded to _________ __________ by ___________________.

A

tetrahedral-like structure, four other carbon atoms, very strong covalent bonds

50
Q

Properties of diamonds

A

hard and high melting point(due to many strong covalent bonds, which require a lot of energy to overcome); useful for cutting tools and dentist drills

51
Q

cation means

A

positive ion

52
Q

anion means

A

negative ion

53
Q

valency means

A

number of bonds that an atom can make

54
Q

In the graphite, the ______________ are in hexagonal shape, in layers. Each carbon atoms to ____________ carbons by strong ________ bonds. The layers are held together by weak ______________(IMFs).

A

carbon atoms, three other, covalent, Intermolecular Forces

55
Q

What are intermolecular forces?

A

forces of attraction or repulsion which act between neighboring particles; much weaker than covalent bonds

56
Q

graphite properties

A

high melting point(as they are macromolecules and the layers are bonded with many strong covalent bonds); soft(due to weak intermolecular forces between the layers); useful in pencils and lubricant

57
Q

The element that is further to the left on periodic table comes _______ in the name. The name of the element does not change.

A

first

58
Q

If there are only two elements within the compound then the compound ends in ‘_____’. The second element will charge its name ending to ‘_____’.

A

ide

59
Q

Have No Fear Of Ice CoLd Beer

A

Hydrogen, Nitrogen, Fluorine, Oxygen, Iodine, Chlorine, Bromine

60
Q

unit of atomic mass

A

u

61
Q

The Relative Molecular Mass unit

A

Mr

62
Q

Relative Formula Mass formula

A

ionic compounds x molecules

63
Q

What does SI units stands for

A

Standarised units used for measuring. E.g. m, kg, s, mol, A, k …

64
Q

Both measuring cylinders and pipettes measure

A

volumes

65
Q

What are precise results?

A

a set of results, measurements or values that are close to each other

66
Q

what are accurate results?

A

results, measurements, values that are close to the actual value

67
Q

Define Pure substance

A

having only one type of particle.

68
Q

Properties of pure substances

A

sharp melting and boiling point(as the substance has a set mp and bp at which the IMFs break)

69
Q

Impure solids have a _____________ than __________. A liquid with a solute will have a ________________ than the _______.

A

lower melting point, pure solids, higher boiling point, pure solvent

70
Q

What is chromatography?

A

separation technique used by food colouring(pigments from mixtures)

71
Q

What is the stationary phase?

A

paper

72
Q

What is the mobile phase?

A

water/solvent

73
Q

What is the name of the thing created?

A

Chromatogram

Chemistry test revision (1 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions