Balanced Chemical Equation – Solution
4Na + O2 → 2Na2O
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
Sodium + Dioxygen = Sodium Oxide
This is an oxidation-reduction (redox) reaction. Na is a reducing agent, O2 is an oxidizing agent.
- 4 Na0 – 4 e– → 4 NaI (oxidation)
- 2 O0 + 4 e– → 2 O-II (reduction)
Substances that react are called starting materials or reactants. The substances that form as a result are called reaction products.
- Names: Sodium.
- Appearance: Silvery solid in various forms.
- Names: Dioxygen, Oxygen.
- Appearance: Odourless compressed gas.
Na2O – Sodium oxide
- Other names: Disodium oxide.
- Appearance: White solid.
|O2 + Na → Na2O|
|O2 + Na → Na2O5|
|O2 + Na → Na2O + Na2O2|
|O2 + Na → NaO|
|O2 + Na → NaO2|
|O2 + Na → Na2O3|
|O2 + Na → Na2O2|
|O2 + Na → Na3O|
|O2 + Na → Na2O22Na|
|H2O + O2 + CO2 + Na → NaHCO3|