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The Reactivity Series Flashcards

1
Q

What is 20 % of air

A

Oxygen

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2
Q

Metal = Mg - magnesium
Does it react with oxygen
Observation

A

Does it react

Yes

Observation

Grey solid
Burns with a bright white light
White Ash forms

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3
Q

Metal = Fe - iron
Does it react with oxygen
Observations

A

Does it react

Yes

Observation

Grey solid burns with orange sparks
Black solid forms

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4
Q

Metal = Cu - copper
Does it react with oxygen
Observation

A

Does not react

Yes

Observation
Red-brown solid at start and glows red when burning
Black layer forms

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5
Q

Metal = Zn - zinc
Does it react with oxygen
Observation

A

Does it react

Yes

Observation
Grey solid at start
And yellow solid forms
Which turns white on
Cooling

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6
Q

Metal = Ca - calcium
with oxygen
Does it react
Observation

A

Does it react

Yes

Observation
Grey solid
Burns with a brick red flame
And white solid forms

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7
Q

Word equation for metal and oxygen

A

Metal + oxygen—— metal oxide

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8
Q

Reaction of metal with water
Metal = Na - sodium
Observation

A

Gives a gas
Floats
Moves around the surface of water
Melts and forms a ball
Disappears and a colourless solution forms

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9
Q

Reaction of metal with water
Metal = k - potassium
Observation

A

Gives a gas
Floats
Moves around the surface of water
Melts and forms a ball
Disappears and a colourless solution form
Burns with lilac flame
Popping sound at end

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10
Q

Which metal reacts fastest

A

Potassium

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11
Q

What colour was a universal indicator in the resulting solutions

A

Dark green/ blue (allcali)

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12
Q

What was the PH of the solutions after Na & K reacted

A

12 - 14

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13
Q

Why are these metals stored in oil

A

To prevent a reaction with moisture and oxygen in the air

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14
Q

Note : Na + K are easily cut ( soft-metals ) and are lustrous when freshly cut, but they tarnish rapidly in air

A
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15
Q

What are the observations for Ca with cold water

A

Ca sinks and rises
Bubble of gas
Ca dissappears + cloudy solution forms
Test tube warmers up

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16
Q

Look at the diagram in note book

A
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17
Q

General equation for metal and water

A

Metal + water&raquo_space; metal Hydroxid + Hydrogen
(Na,K,Ca)

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18
Q

Method for magnesium with steam

A

Heat the Mg until it is red hot and then heat the damp mineral wool to convert water into steam

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19
Q

Result for magnesium and steam

A

Mg burns with a bright white light
White Ash forms

20
Q

Look at the diagram on MAGNESIUM AND STEAM

21
Q

General equation for metal and water

A

Metal + water&raquo_space; metal oxide + hydrogen

22
Q

Note : Copper does not react with water or steam

23
Q

Reactions of metals with acids
Mg
Magnesium
is hydrogen produced

A

Metal : Mg

Observation: bubble of gas, test tube warms up
Solid dissappears
Colourless solution forms

Is hydrogen produced
Yes

Reactivity scale
One

24
Q

Reaction of metal with water
Zn
Observation
is hydrogen produced

A

Observation

Bubble of gas
Test tube warms up

Is hydrogen produced
Yes

Reactivity
2

25
Reaction of metals with acids Metal: Cu Observation
Observation No reaction Is hydrogen produced No Reactivity scale =4
26
Reactions of metals with acids Metal: Fe Observation
Observation Bubbles of gas Is hydrogen produced Yes Reactivity scale 3
27
Reaction of metals with water Metal : Al Observation Is hydrogen produced
Observation No reaction Is hydrogen produced No Reactivity scale =4
28
Note : sodium and potassium are too reactive to add to acids Dangerous reaction
29
Aluminium doesn't react with the acid why
Aluminium is permanently coated with a protective layer of aluminium oxide, so it doesn't show true reactivity.
30
General equation for metal and acid
Metal + acid >> salt + hydrogen E.g Magnesium + hydrogenchloric acid >> Magnesium chloride + hydrogen
31
Does Mg, Zn, Fe , Cu React with magnesium sulfate
Mg = no Zn = no Fe = no Cu = no
32
Does Mg, Zn, Fe , Cu React with zinc sulfate
Mg .. yes Zn... no Fe .... no Cu ......no
33
Does Mg, Zn, Fe , Cu React with iron sulfate
Mg ...yes Zn ....yes Fe.....no Cu ....no
34
Does Mg, Zn, Fe , Cu React with copper sulfate
Mg ....yes Zn .... yes Fe....yes Cu.... no
35
What does a more reactive do to less reactive metal
A more reactive metal will displace a less reactive metal from its compound
36
Word equation for magnesium and copper sulfate
Magnesium + copper sulfate >>> copper + Magnesium sulfate
37
Elements in most reactive to less reactive order
Potassium --------- poor Sodium -------- sciencist Calcium -------------- can Magnesium ----------- make Aluminium ------------- a Zinc ---------------------zoo Iron ------------------in Copper ------------------China
38
Reaction when heated in air/oxygen What elements burn in air to make metal oxide
The first 5 Potassium Sodium Calcium Magnesium Aluminium
39
Reaction when heated in air / oxygen Metal oxides form slowly
That Last 3 Zinc Iron Copper
40
Reaction with water React with ( cold ) water to form metal hydroxides ( solution + hydrogen)
The first 3 Potassium Sodium Calcium
41
Reaction with water React slowly with water -reacts with steam
Magnesium Aluminium
42
Reaction with water React with steam to form metal oxide (solids + hydrogen)
Aluminium Zinc Iron
43
Reaction with water Does not react
Copper
44
Reaction with acids Reaction dangerously fast
Potassium Sodium Calcium
45
Reaction with acids Reacts with acid to form a salt + hydrogen
Magnesium Aluminium Zinc Iron
46
Reaction with acid Does not react
Copper
47
Look at the Reactivity series diagram

Chemistry (4 decks)

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