Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove Ads
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards




share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

extra. of iron

Chemistry

QuestionAnswer
This reaction uses the what? and why? The blast furnace because iron is less reactive than carbon
What raw materials are used? Iron ore (haematite), coke (carbon), limestone (calcium carbonate) & and air.
Firstly.. The iron ore, coke & limestone are all mixed together and fed into the top of the blast furnace.
Secondly... Hot air is blasted into the bottom of the furnace!!!!!!!!!
The first reaction is what? Oxygen from the air reacts with carbon to form carbon dioxide
(Oxygen reacts with what?) Oxygen from the air reacts with carbon to form carbon dioxide
What's the equation for this? (include state symbols) O2(g) + C(s) -> CO2(g)
Then, the carbon dioxide reacts with what and what is formed? The carbon dioxide reacts with the coke (carbon) forming carbon monoxide
What's the equation for this? (include state symbols) CO2(g) + C(s) -> 2CO(g)
What's the next reaction? The carbon monoxide reacts with the iron(iii) oxide in the iron ore
(what does the carbon monoxide do?) The carbon monoxide reacts with the iron(iii) oxide in the iron ore
What's the equation for this (ss)? Fe2O3(s) + 3CO(g) -> 2Fe(l) + 3CO2(g)
What happens to the iron formed? It melts and is collected at the bottom and is then tapped off.
Then what happens to the calcium carbonate in the limestone? It decomposes to form calcium oxide
What's the equation for this (ss)? CaCO3(s) -> CaO(s) + CO2(g)
What's the next reaction? The calcium oxide reacts with silicon dioxide, which is an impurity in the iron ore, to form calcium silicate.
what's the equation for this? (ss) CaO(s) + SiO2(s) -> CaSiO3(l)
What then happens to the calcium silicate? It melts and collects as molten slag on top of the molten iron, which is then tapped off separately.
Created by: eloiseis