a) Fe,O, + H2
→ Fe +H2O
b) Fe,O, + C
→ Fe +CO2
c) Fe,O, + Al
→ Fe +Al½O3
d) Fe O, + C
→ FeO +CO2
e) Fe,O, + Al
→ FeO +Al½O3
f) Fe,O, + H2
→ FeO +H2O
g) Fe,O, +H,SO,
→ Fe,(SO4); + H,0+ SO2
h) Fe,O, +H,SO,
→ Fe,(SO4); + H;O+S
i) Fe,O, +H,SO4
t°
→ Fe,(SO4)3 + H,S + H,O
t°
k) Fe,O, +HNO3
F ...
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