ELI5: Explain Like I'm 5

Acid–base reaction

Are you ready for a fun chemistry lesson? Today we're going to talk about something called acid-base reactions.

Imagine you're playing with a bucket of water outside. If you put a little bit of vinegar in the water, it will start to smell funny and taste sour. That's because vinegar is an acid. Now, if you put a little bit of baking soda in the water, it will start to bubble and fizz. That's because baking soda is a base.

When acids and bases mix together, they can have a reaction with each other. It's like their molecules are having a big party and shaking hands with each other. The acids and bases change into completely different things than they were before.

During an acid-base reaction, something special happens. The acid gives away a tiny part of itself called a proton. A proton is like a very, very tiny ball that's part of the acid molecule. The base catches that proton and adds it to itself, like a new piece in a puzzle.

This little interaction changes the properties of both the acid and the base. They become different things with different properties than they had before. When a strong acid and a strong base meet each other, they become something called salt, which is a completely different substance altogether.

So, the next time you taste something sour or feel something fizzing, you can remember that it's all part of an acid-base reaction. Gaga-goo-goo!