Reactivity Series Flashcards

1
Q

Why group 1 are the most active metals

A

As they are more readily to lose electrons than other metals

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2
Q

Why Group 7 contain most active non-metal

A

As they are more readily to gain electrons than other non metals

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3
Q

Reactivity series of metal____down group

A

Increase

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4
Q

Reactivity series of non-metals _____down group

A

Decrease

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5
Q

What are the very active metals with arranging

A

K,na,ba,ca,mg,al

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6
Q

What are moderately active metal

A

Zn
Fe
Sn
Pb

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7
Q

What are least active metals

A

Cu
Hg
Ag
Au
Pt

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8
Q

Balanced chemical equation with symbols for reaction of active metal with water(ca,na)

A

2Na(s)+2H2o(l)=>2NaoH(aq)+H2(g)
Ca(s)+2H2o(l)=>Ca(oH)2(aq)+H2(g)

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9
Q

K and Na react____with cold water

A

Violently

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10
Q

Ca react ____with cold water

A

Readily

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11
Q

Why calcium react readily with water

A

To form bubbles of hydrogen and to form calcium hydroxide solution

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12
Q

Mg_____with cold water

A

Very slow

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13
Q

What will happen when mg heat in steam?

A

Mg change from shiny grey solid to to white powder of mgo

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14
Q

Write balance equator with symbols when mg heat in steam

A

Mg(s)+H2o(l) =>Mgo(s)+H2(g)

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15
Q

What happen when Zn and Fe react with steam

A

Form metal oxide with hydrogen

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16
Q

Write balanced equation with symbols
Zinc+hydrochlicacid=>zinc chloride +hydrogen

A

Zn(s)+2Hcl(aq)=>Zncl2(aq)+H2(g)

17
Q

Zinc+sulphuric acid=>zincsulphate+hydrogen

A

Zn(s)+H2So4(aq)=>ZnSo4(aq)+H2(g)

18
Q

Why active metals like potassium and sodium can’t react with acid

A

As its too dangerous and cause explosion

19
Q

Why aluminium seems unreactive metal?

A

Due to protective layer of oxide Al2O3 which adheres to the metal

20
Q

Some properties of displacement reaction

A

Redox
Most are exothermic

21
Q

What will happen when we add copper to zincsulphate

A

No reaction

22
Q

What will happen when we add copper to magnesium sulphate

A

No reaction

23
Q

What will happen when we add zinc to copper(ll)sulphate

A

Redish brown dopesit of cu forms
Blue colour of solution fades

24
Q

Balanced equation when zinc added to copper(ll)sulphate solution

A

Zn(s)+CuSo4(aq)=>Znso4(aq)+Cu(s)

25
What will happen when we heat carbon added to metaloxide
Reduction of oxides in metals below carbon in activity series
26
Balanced chemical equation Iron(III)oxide+carbon=>iron +carbondioxide
2Fe2O3+3c=>4Fe+3Co2
27
Active metals found in____form
Compound
28
Unactive metal found in_____form
Element
29
How active metal are extracted?
Electrosis
30
How moderate active metals extracted
By reduction of metal oxide in the blast furnace by carbon
31
Describe two observations made when mg burn in aor
White solid and white flame
32
Describe a test to show that bubbles contain hydrogen gas
Burn with pop sound