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8/16/2019 Mattar- G8-Tri3-2016.pdf
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Page 1 of 5
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
8/16/2019 Mattar- G8-Tri3-2016.pdf
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Page 2 of 5
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
8/16/2019 Mattar- G8-Tri3-2016.pdf
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Page 3 of 5
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
8/16/2019 Mattar- G8-Tri3-2016.pdf
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Page 4 of 5
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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Page 5 of 5
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 +
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