What happens when an acid and a base mix together?
The Great Swap Party
What happens when an acid and a base mix together?

Somewhere in a kitchen right now, two chemical opposites are about to bump into each other. One is sour. One is slippery. When they meet, something happens — and it's a little dramatic. So let's eavesdrop.
First, meet the acid. Lemon juice, vinegar, the fizz in soda — all acids. What makes something an acid? It's a substance that's eager to give away tiny particles called hydrogen ions. Think of an acid as a guy with too many balloons, desperate to hand them out.
