* Breaking Bonds: The existing bonds within the hydrogen (H-H) and oxygen (O=O) molecules break. This requires energy, typically supplied as heat or a spark.
* Rearranging Atoms: The individual hydrogen and oxygen atoms then rearrange themselves. Two hydrogen atoms bond with one oxygen atom to form a water molecule (H2O).
* Formation of New Bonds: The formation of the new bonds in the water molecule releases energy, making the reaction exothermic.
In essence:
* The gas molecules of hydrogen and oxygen break apart.
* The individual atoms then combine to form new molecules of water.
Key Points:
* Conservation of Matter: No atoms are created or destroyed, only rearranged.
* Energy Change: The reaction releases energy (exothermic) because the new bonds formed in water are stronger than the original bonds in hydrogen and oxygen.
Let me know if you'd like more detail on any of these aspects!
