alyssalopez9023
19.05.2020 •
Chemistry
Blast furnaces extra pure iron from the Iron(III) oxide in Iron ore in a two step sequence. In the first step, carbon and oxygen react to form carbon monoxide:
2C(s) + O2(9) arrow 2 CO(g)
In the second step, Iron(III) oxide and carbon monoxide react to form Iron and carbon dioxide:
Fe2O3(s) + 3 CO(g) → 2 Fe(s) + 3CO2(g)
Suppose the yield of the first step is 97.% and the yield of the second step is 89.%. Calculate the mass of oxygen required to make 5.0 kg of iron.
Be sure your answer has a unit symbol, if needed, and is rounded to 2 significant digits.
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Ответ:
CuSO4 + Fe -> FeSO4 + Cu
Explanation:
This reaction is a classic example of a redox reaction. I won't go in too deep, but the basic thing is that electrons from the Fe atom go to the Cu2+ ion. Therefore, Fe becomes an ion, and Cu - an electroneutral atom:
Fe + Cu2+ -> Fe2+ + Cu.
Silver is not a very reactive metal and it does not give up its electrons to Cu.