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.
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 |