Fe + O2 = Fe2O3

Balanced Chemical Equation – Solution

4Fe + 3O2 → 2Fe2O3

The coefficients show the number of particles (atoms or molecules), and the indices show the number of atoms that make up the molecule. New substances are formed as a result of the rearrangement of the original atoms. As a result of a chemical reaction, atoms of chemical elements do not disappear anywhere and new ones do not appear, their number remains unchanged – this follows from the law of conservation of mass of substances.

Chemical Reaction Information

Iron + Dioxygen = Hematite

This is an oxidation-reduction (redox) reaction. Fe is a reducing agent, O2 is an oxidizing agent.

  • 4 Fe0  12 e  4 FeIII (oxidation)
  • 6 O0 + 12 e  6 O-II (reduction)

Reaction Type

Synthesis

Substances that react are called starting materials or reactants. The substances that form as a result are called reaction products.

Reactants:

Fe

  • Names: Iron.
  • Appearance: Colorless, yellow or red fuming liquid.

O2

  • Names: Dioxygen, Oxygen.
  • Appearance: Odourless compressed gas.

Products:

Fe2O3 – Iron(III) oxide

  • Other names: Ferric oxide.
  • Appearance: Red-brown solid.
Similar Examples of Equalizing a Chemical Reaction
O2 + HNO3 + Fe → H2O + Fe(NO3)3
H2O + O2 + Fe → (Fe2O33H2O)
O2 + Fe + SiO2 → Fe2SiO4
O2 + HCl + Fe → H2O + FeCl3
O2 + SO2 + Fe → Fe2(SO4)3
O2 + Fe → Fe2O3 + FeO
O2 + Fe → FeO4
O2 + HCl + Fe → H2O + FeCl2
O2 + Fe → Fe2O2
H2O + O2 + Fe → FeO(OH)
H2O + O2 + Fe → H2 + Fe(OH)3
O2 + Fe + H2S → H2O + FeS
O2 + Fe → Fe3O
O2 + Fe → Fe2O34
H2O + O2 + Fe → H2 + Fe2O3
H2O + O2 + Fe → FeOOH
O2 + Fe + S8 → SO2 + FeS
O2 + Fe → FeO2
O2 + Fe → Fe2O3
O2 + KOH + Fe → H2O + K2FeO4
O2 + Fe → Fe2O
O2 + H2 + Fe → Fe(OH)2
O2 + Fe → Fe3O4O
H2O + O2 + Fe → Fe(OH)3
H2O + O2 + Fe → Fe(OH)2
H2O + O2 + Fe → H2 + Fe(OH)
O2 + KOH + Fe → KFeO2 + H2O7
O2 + Fe → FeO
O2 + Fe → Fe29O3
O2 + KOH + Fe → H2O + K2FeO2
H2O + O2 + Fe → Fe2O3*3H2O
H2O + O2 + Fe → Fe(OH)
O2 + Fe → FeO + Fe2O3(Fe3O4)
O2 + Fe → Fe2O3*FeO
O2 + Fe → FeO*Fe2O3
H2O + O2 + Fe + OH → Fe(OH)3
O2 + Fe → Fe2O4
H2SO4 + O2 + Fe → H2O + Fe2(SO4)3
H2O + O2 + Fe → Fe2O3*5H2O
O2 + Fe → Fe3O4
O2 + Fe → Fe3O3
O2 + KOH + Fe → H2O + KFeO2
O2 + Fe → Fe2O5
H2SO4 + O2 + Fe → H2O + FeSO4
O2 + Fe → Fe3O2

Alexander Stephenson

Candidate of Chemical Sciences, editor-in-chief of Guide-scientific.com. Lecturer at several international online schools, member of the jury of chemistry competitions and author of scientific articles.

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