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Chemistry Revision > Chemistry Of The Elements (The Periodic Table. Reactivity Series, Tests) > Flashcards

Chemistry Of The Elements (The Periodic Table. Reactivity Series, Tests) Flashcards

(70 cards)

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1
Q

Metal oxides are __________

Whereas non-metal oxides are __________

A

Basic

Acidic

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2
Q

Why do elements in the same group have similar chemical properties

A

Because they have the same number of electrons in their outer shell

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3
Q

Group 1 metal + water —>

A

Metal + Water –> Metal Hydroxide + Hydrogen

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4
Q

Group 1 elements become more reactive as you go _______ the group

A

Down

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5
Q

Why do group 1 elements become more reactive as you go down the group

A

Because the outermost electrons is in an shell which is further from a nucleus so the attraction between the outermost electron and the nucleus becomes less. So the bigger the group 1 atom, the weaker the attraction and the more easily the electron is lost. (So it wants to to react quicker and is more reactive)

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6
Q

Is metal hydroxide acidic or alkaline

A

Alkaline

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7
Q

As you go down group 7, the _________ the colour and the __________ the boiling point

A

Darker

Boiling

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8
Q

Colours of:
Chlorine
Bromine
Iodine

A

Chlorine - Green
Bromine -Red-brown
Iodine -Dark grey

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9
Q

Physical state at room temperature of:
Chlorine
Bromine
Iodine

A

Chlorine - Gas
Bromine - Liquid
Iodine - Solid

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10
Q

What is dissociation

A

When hydrogen splits up in water into H+ ions and cl- ions

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11
Q

Hydrogen chloride doesn’t dissociate in _____________

A

Methylbenzene

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12
Q

When hydrogen chloride dissociates in water, the H+ ions mean that the water is _________

A

Acidic

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13
Q

Chlorine water is colourless. What colour is bromine water

A

Orange

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14
Q

What colour is iodine water

A

Brown

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15
Q

Group 7 metals get _______ reactive as you go up the group

A

More

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16
Q

How to do a displacement reaction

A

Add potassium halide solution to halide water

See if the halide from the water displaces the halide from the potassium

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17
Q

Halogen displacement reactions are _______ reactions

A

Redox

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18
Q

What is a redox reaction

A

A reaction where oxidation and reduction occur

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19
Q

Acid + Metal –>

A

Acid + Metal –> Salt + Hydrogen

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20
Q

You can use the reactions of different metals with dilute acids to work out how _________ they are. The more reactive the metal, the faster the reaction, the _______ reactive the metal

A

Reactive

More

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21
Q

Acid + Metal –> Salt + Hydrogen
The speed of the reaction indicated by the rate at which the bubbles of __________ are given off. The ___________ is confirmed by the burning splint test

A

Hydrogen

Hydrogen

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22
Q

Magnesium gives a _____ squeaky pop whereas iron gives a ________ squeaky pop

A

Big

Small

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23
Q

Metal + Water –>

A

Metal + Water –> Metal Hydroxide + Hydrogen

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24
Q

Metal + Water –> Metal Hydroxide + Hydrogen

_______ reactive metals react vigorously with water

A

More/very

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25
Metal + Water --> Metal Hydroxide + Hydrogen | _______ reactive metals won't react vigorously with water but they will react with _______
Less | Steam
26
What is a reducing agent
A substance that brings about reduction by being oxidized and losing electrons.
27
What is an oxidising agent
A substance that brings about oxidation by being reduced and gaining electrons.
28
Rust equation:
Iron + Oxygen + Water --> Hydrated iron(|||) oxide (rust)
29
What are the two main ways to prevent rusting
Barrier method | Sacrificial method
30
What is the barrier method
Painting/coating/oiling/greasing
31
When should you paint and when should you use oil
Paint is good for immobile objects | Oil is good for objects with moving parts
32
What is the sacrificial method
Putting a more reactive metal on top of the iron so that that metal reacts with the oxygen and water
33
What is galvanising
When an object is coated with an element more reactive than iron
34
Test for chlorine
Bleaches damp red litmus paper white
35
Test for oxygen
Relights a glowing splint
36
Test for co2
Turns limewater cloudy
37
Test for hydrogen
Makes a squeaky pop with a lightedsplint
38
Test for ammonia
Turns damp red litmus paper blue
39
Wet copper sulfate is _______ | Dry copper sulfate is ________
Blue | White
40
How to make oxygen in the lab
By the decomposition of hydrogen peroxide
41
What catalyst is used in the decomposition of hydrogen peroxide
Manganese oxide
42
Magnesium oxide is slightly __________ when it's dissolved in water
Alkaline
43
Carbon dioxide is slightly __________ when it's dissolved in water
Acidic
44
Sulfur dioxide is slightly __________ when it's dissolved in water
Acidic
45
Flame tests: Lithium
Red flame
46
Flame tests: Sodium
Yellow flame
47
Flame tests: Potassium
Lilac flame
48
Flame tests: Calcium
Brick-red
49
Metal + NaOH: Copper
Blue
50
Metal + NaOH: Iron (||)
Sludgy green
51
Metal + NaOH: Iron (|||)
Reddish brown
52
Ammonia + NaOH -->
Ammonia
53
What should you use to test for carbonates
Hydrochloric acid
54
What is formed if carbonates are present
CO2
55
Carbonate + Acid -->
Carbonate + Acid --> Carbon dioxide + Water
56
Test for sulfates:
Dilute HCl, followed by barium chloride solution
57
What is formed if sulfates are present
White precipitate
58
Test for halides:
Nitric acid followed by silver nitrate
59
Test for halides: Nitric acid followed by silver nitrate solution: Chloride
White precipitate of silver chloride
60
Test for halides: Nitric acid followed by silver nitrate solution: Bromide
Cream precipitate of silver bromide
61
Test for halides: Nitric acid followed by silver nitrate solution: Iodide
Yellow precipitate of silver iodide
62
Test for metal ions
Flame tests | NaOH
63
Test for carbonates
Hydrochloric acid
64
Test for sulfates
HCl and Barium Chloride
65
Test for halides
Nitric acid and silver nitrate
66
Result for metal ions
Copper - Blue Iron (||) - Sludgy green Iron (|||) Reddish brown
67
Result for carbonates
Carbon dioxide
68
Result for sulfates
White precipitate
69
Result for halides
Chloride - White Bromide - Cream Iodide - Yellow
70
Uses of Carbon dioxide:
Fizzy drinks | Fire extinguishers

Chemistry Revision (9 decks)

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