Follow the Proton

You'll learnto identify acid and base by tracking which species donates and accepts a proton.

One H⁺ leaves one molecule and lands on another, and that single move is what makes an acid-base reaction and what decides which species is called the acid and which the base. Watch where the proton goes and every label in the equation writes itself. Twelve short steps; press Next for each one.

12 STEPS · 6 QUICK CHECKS · BRØNSTED-LOWRY PROTON TRANSFER · v3

one proton, and every label follows it

Before you start

What you're looking at

Ammonia and water on stage, with a single proton about to change address.

The question

Which one is the acid and which one is the base?

Step 1 / 12