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Worksheet (1)

Displacement Reactions

Key words :

Reactive : How easily a substance undergoes a

chemical reaction with others

Displacement reaction : The reaction when a more

reactive metal reacts with a compound of a less

reactive metal 

Which elements are in each of these compounds :

ulfurS+opperC:idesulf Copper-1

xygenO+ulfurS+agnesiumM:atesulf Magnesium-2

 …..xygenO+arbonC…:idedioxCarbon-3…………..xygenO+ronI…………:ideoxIron-4

xygenO+arbonC+alciumC……:atecarbonCalcium-5

Oxygen+ydrogenH+odiumS…:idehydroxSodium-6 

Which of these metals is the most reactive with

water :

1- Sodium [×]

2- Magnesium [×]

3- Potassium [ √]

4- Copper [×]

 

Experiment:*

1- Put 2 cm depth of copper sulfate solution into a

test tube

2- Add a small piece of magnesium ribbon

3- leave the test tube, what do you observe ?(1) We will observe a reaction right away(2) The solution Changes colour as we provide more

magnesium

* What is in your test tube at the end of the

experiment ?(1) Magnesium sulfate (colourless) and..(2) Copper (red-brown specks)

* Look at the equation

احــت :كت  ح

 : او ـ  ل ـا  ةد ـ ةرد ـ ىد ـر خـأ

 :  ت احـل ـ ر ـأ ز ـ ن م يذا ل ـا ـ

 ل ـأ

 ر خـآ

 ز ـ

 ب ـر

 

: ا تـكرا  ةدوـجوا رـصا ر كـذأ *

1-: س ـا در ـ…………………………………………………………..

2-: رت اغوم ـ…………………………………………………………..

3-:ارون

 أد

 

…………………………………………………………..

4-: دد ـا د ـأ…………………………………………………………..

5-: وم ـا تور ـ…………………………………………………………..

6-: ..…………………………………………………………درود اودوم

 

أي اـزات ا اـى ـ ع*

: ـ

1- ] [ ودوم ـ

2-] [ وم ـغ

3-] [ وم ـو

4-] [س ـ ـ  

: رــج *

1- ضـ2لو ـ ن  ـ موأ  س ـا ت ـر

ر ـخ

و-2 ـغا طر شـ ن ةر ـ  ـط ف ضـأ

د -3 شـ اذ ـ  ر ـخا وأ كرأ………………………………………………………………………………………………………………………

 

……………………………………………………………………………………………………………………

 

* ـ  ر ـخا و ـأ  د ـو اذ ـ

  ر ـ

……………………………………………………………………………………………………………………

 

Abu Dhabi Education Council

Al Tamayoz School Cycle 2

Science Department

Name : Grade : Date :

Magnesium + Copper sulfate Magnesium sulfate + Copper

Metal Metal compound

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Worksheet (2)Displacement Reactions

Key words :

Reactivity series : A list of the metal elements in

order of reactivity

 

We can predict whether a metal and a metal

Compound will react by comparing the

Reactivity of the metal and the metal in theMetal compound

* For each equation below, decide whether

there will be a reaction . If there is,

complete the equation :

* Explain the following :

1- We can’t keep cooper sulfate in iron vessels(1) The vessel wall will corrode because (2) “Iron” atoms will

react with “Copper sulfate”, (3) displaces “copper” to form

“Iron sulfate” and (4) “Copper” precipitates 

2- We use gold and silver in making jewelry(1) They are of 5 least reactive elements, so, (2) they don’t reactor displace other elements, so they don’t change by time 

3- The color of copper sulfate change into brown

by adding iron nail to solutionBecause (1) “Iron” atoms will react with “Copper sulfate”, (2)

displaces “copper” to form “Iron sulfate” and (3) “Copper”

precipitates giving the solution a brown colour 

احــل

 ــت

 

: ح تك

: ـا  ـ  ـر ز ـا ر ـا م ضـ ئ ـ ـ ـ

ز ـ ن ل ـا ثود ـ ؤ ـا  ـزـ برو

 ز ـ ـا

  ـ ـ

 

 ز ـا

  ـ ـ ـ

 دى ـ

 ر ـ

ب ـر

ــا تدـا ن لكـ *

رر إـكـ حـدوث اــل قـ

: د اـل ـ لـكأو

:  ـ رــ *

1-ط د ـا ن وأ  سا تر ظ ـ……………………………………………………………………………………………………………………… 

2- ـا   ضا و بذا مد خـ ـ……………………………………………………………………………………………………………………… 

ون رت اس-3 ـ ر ـر ـ ضإ د ا نوا إ

ول ـ

 ددي ـ

……………………………………………………………………………………………………………………… 

1- Magnesium + copper sulfate

2- Copper + magnesium sulfate

3- Iron + copper sulfate

4- Iron + sodium chloride

5- Zinc + silver nitrate

6- Copper + potassium sulfate

7- Gold + potassium nitrate

Magnesium sulfate + Copper

Iron sulfate + Cooper

Abu Dhabi Education Council

Al Tamayoz School Cycle 2

Science Department

Name : Grade : Date :

Potassium

Sodium

Calcium

Magnesium

Aluminum

Carbon

Zinc

Iron

Tin

Lead

Copper

Silver

Gold

Zinc nitrate + Silver

(1) Copper is less reactive than Potassium (2) So, copper can’t replace potassium in its compounds

(1) Copper is less reactive than Magnesium (2) So, copper can’t replace Magnesium in its compounds

(1) Gold is less reactive than Potassium (2) So, Gold can’t replace potassium in its compounds

(1) Iron is less reactive than Potassium (2) So, iron can’t replace Potassium in its compounds

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Worksheet (3) Displacement Reactions

Key words :Ore : A rock that contains a metal oxide we can

extract the metal from it

Charcoal : Blackened wood that has been burned in

a fire

 

* How can we get copper ?

We can get copper metal from the copper ore

( Cuprite ) present in the crust rocks by heating

cuprite with charcoal as the equation

 

* What are the uses of copper ?

1 Simple tools used 1000s of years ago Pots and pans2 Modern electronic circuitry Copper wires

3 High resistance to corrosion

“due to its relative low reactivity”

Water supply

networks

4 Ease of extraction from its ores: so it is

inexpensive

Money coins

 

* Explain the following :

1- we use copper in electric wires(1) “Copper” is one of the very conductive elements and… (2) It is a cheap metal found in abundance in earth crust 

2- extraction of copper by reacting cuprite with

charcoal(1) Carbon “charcoal” will displace copper in cuprite which…. (2) produces carbon monoxide gas and leaves copper as a pure

element 

…………………………………………………………………………………..………………

 

ــت احـل

:

ح

 

:كت ز ث نـخــم ـا د ـأ  يو ـ يذا ر خـاه

 ز ـا

 خص ـ

: راق اخشــحـــم ـا ن ج ـ يذا دو ـا م ـا

 

* كـف كـن احصـول ى احـس

 اذي

 )اورات

 (اس

 خم

 ن

 س ـا

 

 ول ـا

  ـ

م  ـا  تاروا نخ ـ  ضـرا ةر شـا رو خـ  د ـود ـا

 ب ـ

 

س * ـ ه اـخداـت حـا

1-………………………………………………………………………………………………………………2-………………………………………………………………………………………………………………

3-………………………………………………………………………………………………………………

 

:  ـ رــ *

1-ر ـا

 ك ـأ

  ـ

 

 س ـا

 خدم ـ

………………………………………………………………………………………………………………………

 

………………………………………………………………………………………………………………………

 2-

ل ـ

 اس

 خص ـرا

ـ ـا  

Carbon + copper oxide copper + carbon monoxide

Abu Dhabi Education Council

Al Tamayoz School Cycle 2

Science Department

Name : Grade : Date :

Copper ore ( Cuprite ) Copper in the ground Charcoal

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activity (1)Displacement Reactions

 

* Experiment :

1- Put 2 cm depth of copper sulfate solution into atest tube

What is the color of the solution ? …blue ….

 

2- Add an iron nail to the solution

What is the color of the nail ? ……grey…….

 

3- leave the test tube few minutes

What is the color of the solution after the reaction?……Brown/yellow ………

 

What is the color of the nail after the reaction?……………brown…………………

 

* What is in your test tube at the end of the

experiment ?……………iron sulfate solution + copper nail……………… 

4- Explain, what happened in the test tube (1) “Iron” atoms in the nail reacted with “Copper sulfate” 

solution, (2) displaced “copper” to form “Iron sulfate” and (3)

“Copper” precipitated giving the solution a brown colour  

Write the word equation of this reaction :

 

ــت احـل

 

: ـ رـج *

1- ضـ

2و ـأ

 

 س ـا

 رت ـ

 ن

  ـ

 م

ر ـخ

  ول ـا نو ـ  ـ............................ 

ول-2 ـا إ دد ـ ر ـ ف ضـأ

 دد ـا

 ر ـ

 ون ـ

 و

  ـ

............................

 

3-ئ ـد ةد ـ ر ـخا و ـأ كرا

  ل ـا

 د ـ

 ول ـا

 ون ـ

  ـ

………………………………………………………………………………………………………………………

 

ل ـا

 د ـ

 دد ـا

 ر ـ

 ون ـ

  ـ

………………………………………………………………………………………………………………………

 

ـ  ر ـخا و ـأ ل خـاد دو اذ ـ *  ر ـ

………………………………………………………………………………………………………………………

 

ر -4 ـخا و ـأ  ثد ـ يذا  ـ  ضـو………………………………………………………………………………………………………………………

 

………………………………………………………………………………………………………………………

 

………………………………………………………………………………………………………………………

 : كـب ـد ظـ ـل

 

Abu Dhabi Education Council

Al Tamayoz School Cycle 2

Science Department

Name : Grade : Date :

…Copper sulfate ….. +  ……Iron…… ……Iron sulfate …….. +  ……Copper……

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activity (2)

The thermite reaction

Key words :

Exothermic reaction : A reaction which produces

heat 

The thermite reaction:

When we add aluminum to powdered iron oxide

and provide the mixture with a little heat, they

react and produce high temperature and can beexplosive and the mixture becomes a solid lump of

metallic iron

1- What type of reaction is the thermite?

……… Exothermic Displacement reaction………………………… 

2- Which metal is more reactive aluminum or iron?

……Aluminum……………………………………………………… 

3- How can this reaction be useful for iron

structures repairing?Due to the high temperature produced by the reaction,

the volume of molten iron metal takes the place of

broken metal and weld the pieces together/ fills the

gaps 

4- Write down the reaction word equation

 ــل اـرـت: ح تك

: ل اذيــل طـرد حرارة ـاه ـ ـ ج ـرارة ـ ـ

: ــل اـرت

د ـو

 دد ـا

 د ـأ

 وق ـ

 إ

 اووم

 ف ضـ

 د ـ

رارة ـ

 ه ـ

 ج ـو

 ل ـ ـا

 دث ـ

 رارة ـا

 ن

 ل ـ

 ط خـ

 ط خـا

  ـو

 ر ـ ـا

 دث ـ

 أن

 ن ـو

  ـن

  ـط

ب ـا

 دد ـ

ت -1 ـر ـا ل ـ عو ـ و ـ  ـ..........................................................................................

دد -2 ـا مأ مووا طش ر ـا نز ـا يأ..........................................................................................

ت-3 ـا ح ـإ   د ـ ـ ل ـ ـا اذـ نو ـ ف

  دد ـ

…………………………………………………………………………………………………………………… 

…………………………………………………………………………………………………………………… 

4-  ل ـ ـ  ظـ د ـ ل ـ ـ ب ـ

Abu Dhabi Education Council

Al Tamayoz School Cycle 2

Science Department

Name : Grade : Date :

…Aluminum.. +  Iron oxide  ………………… Aluminum oxide + Iron  +