Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

GCSE chem-F > 3.1 Introduction to Chemistry > Flashcards

3.1 Introduction to Chemistry Flashcards

1
Q

Four ways to make good observations when describing substances in practical work:

A
  • Solid, liquid or gas?
  • Coloured? Colourless?
  • Crystalline or powdered? (solids)
  • Clear or cloudy? (liquids)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Four ways to make good observations when desribing changes during practical work:

A
  • Fizzing?
  • Has a solid appeared or disappeared?
  • Colour change?
  • Unusual sounds/smells?
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

List the 3 main ways you can tell if there has been a physical change:

A
  • No new substance has been created
  • Usually easy to reverse
  • Absorb or release small amounts of energy
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

List the 3 main ways you can tell if there has been a chemical change:

A
  • New substance has been created
  • Difficult to reverse
  • Absorbs or realeases large amounts of energy
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Chemical test for water: (also give the colour change)

A
  • Anhydrous copper(ii) sulphate: turns from white to blue. (Tells you water is present, but not how pure it is.)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Physical tests for water: [2 points]

A
  • Melting point (mp) =0*C
  • Boiling point (bp) = 100*C
    (Pure water matches these properties more closely)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Define element

A

A substance containing only one type of atom

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

Metal properties of an element: [4 points]

A
  • High MP/BP
  • Electrical conductors
  • Malleable
  • Shiny
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Non- Metal properties of an element: [4 points]

A
  • Low MP/BP
  • Electrical insulators
  • Brittle
  • Dull
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Give the 3 states of matter:

A

solid// liquid// gas

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

Name the change from solid to liquid

A

melting

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

Name the change from liquid to gas

A

evaporat(ing/ion)

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

Name the change from gas to solid

A

depsition

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

Name the change from solid to gas

A

sublimation

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

Name the change from gas to liquid

A

condensation

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

Name the change from liquid to solid

A

freezing// solidification

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

List the properties of a solid: [5 points]

A
  • have a fixed volume and a fixed shape
  • particles are vey close together
  • particles are arranged in a regular pattern
  • all particles vibrate around a fixed position
  • low energy
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

List the properties of a liquid: [5 points]

A
  • have a fixed volume, but not a fixed shape
  • particles are close together
  • particles are randomly arranged
  • particles move around each other
  • particles have greater energy
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

what are the elements in group 1 called?

A

alkali metals

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

List the properties of a gas: [5 points]

A
  • have no fixed shape// volume
  • particles are far apart
  • particles are randomly arranged
  • particles move quickly in all directions
  • particles have high energy
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

what are the elements in group 2 called?

A

alkaline earth metals

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

what are the elements from Sc to Zn called?

A

transitions metals

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

what are the elements in group 7 called?

A

non-metals

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

what are the elements in group 8//0 called?

A

noble gase(s)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
what are the 2 elements that are liquids at room temperature?
mercury and bromine
25
define diffusion
Diffusion is the movement of a gas or liquid from an area of high concentration to an area of low concentration.
26
list the diatomic molecules: [7 points] (you can use the acronym)
I2; Br2; Cl2; F2; O2; N2; H2 ((I) (Br)ought (Cl)ay (F)or (O)ur (N)ew House)
27
Chemical formula for Ammonia?
NH4(^+)
28
Chemical formula for Hydroxide?
OH(^-)
29
Chemical formula for Nitrate
NO3(^-)
30
Chemical formula for Carbonate
CO3^2-
31
Chemical formula for Sulphate
SO4^2-
32
Chemical formula for Phosphate
PO4^3-
33
Define Element
A pure substance made up of only 1 type of atom
34
Deifne compound
2 or more different types if atoms chemically bonded together. (BONUS: If the compound is made up of non-metals, the marticles are called molecules.)
35
name for HNO3
Nitric acid
36
NH4OH
Ammonium
37
NH3
Ammonia
38
CuSO4
Copper Sulphate
39
Define thermal decomposition
When heat energy is used to break down a substance
40
What does metal carbones typically thermally decompose to form?
Metal oxides and CO2 (Metal Carbonate --> Metal Oxide + Carbon Dioxide)
41
Give the name of the state change from solid to gas
Deposition
42
Give the name of the state change from gas to solid
Sublimation
43
Give the name of the state change from liquid to gas
Evaporation// boiling
44
Give the name of the state change from gas to liquid
condensation
45
Give the name of the state change from liquid to solid
solidification// freezing
46
Give the name of the state changefrom solid to liquid
Melting
47
List the 7 diatomic elements
Iodine; Bromine; Chlorine; Flourine; Oxygen; Nitrogen; Hydrogen (I Brought Clay Four Our New House)
48
Name the elements in iron sulphide
iron and sulphur
49
name the elements in sulphur trioxide
sulphur and oxygen
50
name the elements in magensium nitrate
magensium, nitrogen, and oxygen
51
give the name of the compound: CuO
Copper odide
52
give the name of the compound: MgCO3
Magnesium carbonate
53
give the name of the compound: FeSO4
Iron sulphate
54
give the name of the compound: NH3
Ammonia
55
What do metal carbonates thermally decompose to form?
metal oxides and carbon dioxide
56
Sodium hydrocarbonate, NaHCO3, undergoes thermal decomposition forming sodium carbonate, NA2CO3, and 2 other products. Construct a balanced chemical equation for the reaction and identify the pther products of this decomposition.
2NaHCO3 --> NaCO3 + CO2 + H2O Sodium Hydrogen carbonate --(heat)--> sodium carbonate + carbon dioxide + water
57
Give the elements and percentage of the composition of air [4 points]
78% nitrogen. 21% oxygen. 0.03% carbon dioxide. about 1% argon.
58
Deifne thermal decomposition
when heat energy is used to break down a substane (using heat to break down a compound)
59
State the quation used to find the percentage of oxygen in the air:
% of O = (change in volume/total volume of air) * 100
60
Define solvent
The liquid in which a solute is dissolved in a solution
61
Define solute
the substance to be dissolved in a solution
62
Define saturated
a solution in which no more solute can dissolve
63
Define soluble
a substance which can be dissolved
64
Define insoluble
a substance which can't be dissolved
65
Define suspension
a solid present in a solution because is did not dissolve
66
Define solution
a transparent mixture of a solvent with a solute dissolved in it
67
68

GCSE chem-F (5 decks)

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