Chlorine is a chemical ninja. When it hits water, it forms hypochlorous acid. That sounds scary, but it’s just a tiny assassin that shreds bacteria.
It also creates chloramines. These are slower-acting cleaners that keep working for hours. Think of them as the bodyguards that stay behind after the party.
Here’s a fun fact: your own stomach makes chloramine-like compounds to kill germs in food. You’re basically a walking water-treatment plant. High five yourself.