Se considera schema de reactii:

Fe + O2 —> a

Fe + b —> a + H2

Fe + Cl2 —> c

Fe + HCl —> d + H2

d + Cl2 —> c

Fe + e —> d + Cu

Fe + H2SO4 —> f + H2

Fe + g —> f + Cu

Identificati substantele din schema, scrieti si egalati ecuatiile reactiilor chimice.





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