* Reactants: Potassium (K) and Chlorine (Cl₂)
* Product: Potassium chloride (KCl)
The Reaction:
2K (s) + Cl₂ (g) → 2KCl (s)
This reaction is highly exothermic, meaning it releases a lot of heat and light. Here's why:
* Metals like to lose electrons: Potassium is a very reactive metal, eager to lose its outer electron to become a positively charged ion (K⁺).
* Nonmetals like to gain electrons: Chlorine is a nonmetal that wants to gain an electron to become a negatively charged ion (Cl⁻).
* Ionic bonds form: The strong attraction between the oppositely charged ions (K⁺ and Cl⁻) creates a stable compound, potassium chloride (KCl).
Safety Note: This reaction is very dangerous if not handled properly. It should only be carried out by experienced chemists in a controlled environment.
