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Carbon
The balanced equation for this reaction is Fe2O3 + 3 H2O = 2 Fe(OH)3.
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Fe2O3 (diiron trioxide) is a chemical compound not am element.
displacement reaction............ u people have to find the answers instead asking others without shame..............
Fe2O3 isn't a reaction it is Iron(III)oxide a.k.a. hematite or simply rust
The material that is oxidized in the given reaction is Iron. Fe2O3 is iron oxide which can occur naturally as the mineral magnetite.
Pyrite (fools gold) reacts with Oxygen to make Hematite (Fe2O3) and Sulpher dioxide (SO2) The reaction is oxidation of pyrite. 2FeS2 + 3.5O2 - - Fe2O3 + 2SO2
Fe2O3 + H2SO4
The coefficient of Fe2O3 is 1
FeO
"Substance" is too fuzzy a word. Chemical reactions can change materials into other compounds, for example shiny iron into rust (Fe2O3). But it cannot change an element into another element. A nuclear reaction can do that, for example uranium into plutonium.