For this matter, I chose chlorine. Too much of it burns our eyes, and not enough of it invites unwanted bacteria and germs. Chlorine has a lot of chemistry to it. For now, I will just mention some of it’s physical and chemical properties.
Before chlorine is added to a pool, it is in the form of a tablet. It’s called Tri-chlor (short for Trichloro-s-triazinetrione). It’s a stabilized form of chlorine. It changes from a solid to a liquid when added to the pool water.
Here’s a chemical equation for chlorine: Cl2 (chlorine) + H2O (water) à HOCl (hypochlorous acid) + HCl (hydrochloric acid).
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