Balanced Chemical Equation – Solution
4Al + 3O2 → 2Al2O3
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
Aluminium + Dioxygen = Ruby
This is an oxidation-reduction (redox) reaction. Al is a reducing agent, O2 is an oxidizing agent.
- 4 Al0 – 12 e– → 4 AlIII (oxidation)
- 6 O0 + 12 e– → 6 O-II (reduction)
Substances that react are called starting materials or reactants. The substances that form as a result are called reaction products.
- Names: Aluminum.
- Appearance: Silvery-white-to-grey powder.
- Names: Dioxygen.
- Appearance: Odourless compressed gas.
- Names: Aluminium oxide (Aluminum oxide).
- Appearance: White solid.
|O2 + Al → Al2O3O3|
|O2 + Al → O3Al2|
|O2 + Al → O4Al5|
|O2 + Al → Al3O4|
|O2 + Al → Al2O|
|H2O + O2 + Al → Al(OH)3|
|O2 + Al → Al3O2|
|O2 + Al + Na(OH) → Al(OH)3 + NaO2|
|O2 + Al → Al2O5|
|H2O + O2 + NaOH + Al → H2 + Na[Al(OH)4]|
|O2 + HCl + Al → H2O + Cl2 + Al2O3|
|O2 + Al → AlO2|
|O2 + Al → Al2O3|
|O2 + Al → Al2O2|
|O2 + Al + Na(OH) → H2O + Al(OH)3 + NaO2|
|O2 + Al → AlO|
|H2O + O2 + Al → Al(OH)2|