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Slide 1: Diapositive
ChemSecondary Education
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You can go to the bathroom until 1:35PM. Leaving the room during our session is NOT allowed.
Keep your shirt tucked in. The person who is untucked will PRESENT A TOPIC NEXT WEEK.
Prepare your chemistry stuff.
Put your phone in the tray (phone collector: Both)
Before we begin:
Slide 1 - Diapositive
Lesson 11
Extraction of IRON
07-10-2022
Slide 2 - Diapositive
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Slide 3 - Sondage
describe the extraction of iron from a rock called hematite
using equations, summarise each step in the extraction of iron from hematite
Success Criteria
Slide 4 - Diapositive
Language
development
Slide 5 - Diapositive
blast furnace
hematite
limestone
mineral
slag
Know the keywords
Slide 6 - Diapositive
Important Keywords and Concepts
Individual; written
Do the important keywords activity.
You only have 7 minutes.
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timer
7:00
Slide 7 - Diapositive
Slide 8 - Diapositive
Iron is extracted in a large container called a ____________ from its ore.
A
blast furnace
B
fume furnace
C
welding box
D
electrolysis hood
Slide 9 - Quiz
The mineral ore where iron is extracted is called ___________.
A
bauxite
B
hematite
C
limestone
D
quartz
Slide 10 - Quiz
Modern blast furnaces produce approximately ____________ tonnes of iron per day.
A
1000
B
10000
C
100
D
100000
Slide 11 - Quiz
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The raw materials: iron ore (hematite), coke (an impure form of carbon), and limestone are added into the top of the blast furnace.
Hot air is blown into the bottom
Coke burns in the hot air forming carbon dioxide.
At the high temperatures in the furnace, more coke reacts with carbon dioxide forming carbon monoxide
Carbon monoxide reduces the iron(III) oxide in the iron ore to form iron
Limestone (calcium carbonate) is added to the furnace to remove impurities in the ore.
The calcium oxide formed reacts with the silicon dioxide, which is an impurity in the iron ore, to form calcium silicate
Slide 12 - Question de remorquage
Carbon dioxide has been _____________ to carbon monoxide.
A
reduced
B
oxidised
C
burned
Slide 13 - Quiz
The calcium carbonate in the limestone thermally decomposes to form _____________.
A
carbon monoxide
B
calcium silicate
C
calcium oxide
Slide 14 - Quiz
When calcium oxide formed reacts with the silicon dioxide, it melts and collects as a molten 'slag' floating on top of the molten iron, which is tapped off separately. What is a slag?
A
carbon monoxide
B
calcium silicate
C
calcium oxide
Slide 15 - Quiz
carbon + carbon dioxide → carbon monoxide
The word equation above happens in what zone of the blast furnace?
The word equation above happens in what zone of the blast furnace?
A
zone 3
B
zone 2
C
zone 1
Slide 17 - Quiz
iron(III) oxide + carbon monoxide → iron + carbon dioxide The word equation above happens in what zone of the blast furnace?
A
zone 3
B
zone 2
C
zone 1
Slide 18 - Quiz
carbon + oxygen → carbon dioxide
The word equation above happens in what zone of the blast furnace?
A
zone 3
B
zone 2
C
zone 1
Slide 19 - Quiz
calcium carbonate → calcium oxide + carbon dioxide The word equation above happens in what zone of the blast furnace?
A
zone 3
B
zone 2
C
zone 1
Slide 20 - Quiz
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The burning of carbon (coke) to provide heat and produce carbon dioxide:
The reduction of carbon dioxide to carbon monoxide
The reduction of iron(III) oxide by carbon monoxide
The thermal decomposition of calcium carbonate (limestone) to produce calcium oxide.
The formation of slag.
Slide 21 - Question de remorquage
Self - Evaluation 😁 - I can do this! I am ready to try something new. 😅 - I am getting there! I need a bit of help. I am a bit unsure. I might need to practice. 😬 - I need help! I don't understand this. I am not ready to move on yet.