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In this I/GCSE chemistry blog post we will look into the different ways of extracting ores.
1. Iron Ore (Iron III oxide)
![broken image](http://custom-images.strikinglycdn.com/res/hrscywv4p/image/upload/c_limit,fl_lossy,h_9000,w_1200,f_auto,q_auto/4979856/721976_437357.jpeg)
Coke reacts with oxygen in air, giving carbon dioxide. CARBON IS OXIDISED.
- C + O2 → CO2
Carbon Monoxide is made. CARBON DIOXIDE IS REDUCED.
- C + CO2 → 2CO
Iron oxide is reduced. CARBON MONOXIDE IS THE REDUCING AGENT. IT IS OXIDISED TO CARBON DIOXIDE.
- Fe2O3 + 3CO → 2Fe + 3CO2
IRON IS REDUCED
![broken image](http://custom-images.strikinglycdn.com/res/hrscywv4p/image/upload/c_limit,fl_lossy,h_9000,w_1200,f_auto,q_auto/4979856/952702_360821.png)
Limestone usage
CaCO3 → C aO + CO2 THIS IS TO REMOVE THE SAND(silica)
- CaO + SiO2 → CaSiO3
2. Aluminium Ore (Aluminium Oxide)
AT THE CATHODE: Al3+ + 3e− → Al (REDUCTION)
AT THE ANODE: 2O2− → O2 + 4e− (OXIDATION)
Overall reaction:
2Al2O3(l) → 4Al(l) + 3O2(g)
That is all for this post!
![broken image](http://custom-images.strikinglycdn.com/res/hrscywv4p/image/upload/c_limit,fl_lossy,h_9000,w_1200,f_auto,q_auto/4979856/55542_22177.png)
References:
https://www.google.com/url?sa=i&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FIron(III)_oxide&psig=AOvVaw1DF9ZynP1BmHbe9klFwq--&ust=1629640125347000&source=images&cd=vfe&ved=0CAsQjRxqFwoTCNirgOOgwvICFQAAAAAdAAAAABAD
https://www.google.com/url?sa=i&url=https%3A%2F%2Fspmchemistry.blog.onlinetuition.com.my%2F2012%2F12%2Foxidising-and-reducing-agents.html&psig=AOvVaw1-JznoV4Un3WiI2CZaniff&ust=1629640187145000&source=images&cd=vfe&ved=0CAsQjRxqFwoTCNjiiPagwvICFQAAAAAdAAAAABADore