Contents
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)
Reaction Type
Synthesis
Substances that react are called starting materials or reactants. The substances that form as a result are called reaction products.
Reactants:
Al
- Names: Aluminum.
- Appearance: Silvery-white-to-grey powder.
O2
- Names: Dioxygen.
- Appearance: Odourless compressed gas.
Products:
Al2O3
- Names: Aluminium oxide (Aluminum oxide).
- Appearance: White solid.
Similar Examples of Equalizing a Chemical Reaction
| 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 |
