Diazonium compound

Have you ever seen those markers that change colors when you write on special paper? Well, those markers work kind of like diazonium compounds.

Diazonium compounds are special chemicals that can change color when they react with other things. They are made up of little bits called molecules that are kind of like tiny Lego pieces that stick together in a certain way.

When diazonium compounds react with things, they can break apart and make new Lego-like pieces. These new pieces can have different colors, like when you mix different paint colors together.

Scientists use diazonium compounds to make all sorts of things, like dyes for clothes or medicines to help sick people. It's like a big science experiment where they mix and match the Lego-like pieces to make something new and useful.

So, diazonium compounds are a special kind of chemical that are like tiny Lego pieces that can change color and be used to make all sorts of cool things!