Here's a more detailed explanation:
* Interaction: The substances involved in the reaction come into contact and their atoms begin to interact.
* Rearrangement: The bonds between the atoms in the original substances break and new bonds form, resulting in a change in the arrangement of atoms.
* New substances: This rearrangement of atoms creates new substances with different chemical compositions and physical properties compared to the original substances.
For example, the reaction between hydrogen gas (H₂) and oxygen gas (O₂) creates water (H₂O). The hydrogen and oxygen atoms rearrange to form a new substance, water, which has different properties than hydrogen or oxygen.
