Asked by candy
1) When we say calcium reacts readily with cold water, it means the reaction is moderately fast?
2) When we react Fe with dilute HCl, we get FeCl2 & H2. Why won't we get FeCl3?
3) Similarly, when we react Fe with CuSO4, displacement reaction occur to give FeSO4 & Cu. Why won't we get
Fe2(SO4)3?
2) When we react Fe with dilute HCl, we get FeCl2 & H2. Why won't we get FeCl3?
3) Similarly, when we react Fe with CuSO4, displacement reaction occur to give FeSO4 & Cu. Why won't we get
Fe2(SO4)3?
Answers
Answered by
bobpursley
http://books.google.com/books?id=STxHXRR4VKIC&pg=PA312&lpg=PA312&dq=iron+oxidation+states+stability+energy&source=web&ots=EE_tKI93-T&sig=cEGksSOaiTNI9CogX7QRzRvHE0o&hl=en&ei=7t6ESaeiIImIsAPpm-29DQ&sa=X&oi=book_result&resnum=4&ct=result#PPA333,M1
see page 333 to answer the third question. The point on that page is that FeII ion is stable, even in water, and the FeIII is relatively stable. IT is a matter of free energy.
On the first question above, Yes, it is moderately fast.
see page 333 to answer the third question. The point on that page is that FeII ion is stable, even in water, and the FeIII is relatively stable. IT is a matter of free energy.
On the first question above, Yes, it is moderately fast.
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