1. Reactants:
* Potassium Oxide (K₂O):
* Potassium (K) is in Group 1, so it has an oxidation state of +1.
* Oxygen (O) typically has an oxidation state of -2.
* Carbon Dioxide (CO₂):
* Oxygen (O) has an oxidation state of -2.
* Carbon (C) has an oxidation state of +4 to balance the -4 from the two oxygen atoms.
2. Product:
* Potassium Carbonate (K₂CO₃):
* Potassium (K) remains at +1.
* Oxygen (O) remains at -2.
* Carbon (C) has an oxidation state of +4 to balance the -6 from the three oxygen atoms.
Oxidation State Summary:
* K: +1 (in both reactants and product)
* O: -2 (in both reactants and product)
* C: +4 (in both reactants and product)
Important Note: The oxidation states of potassium and oxygen remain unchanged throughout the reaction. This is a characteristic of a simple combination reaction where no electrons are transferred between the reacting species.