system
Given the following post, respond as if you're commenting on Reddit:
human
[Chemistry] When you burn a pan, boiling water with vinegar in it makes it a lot easier to clean up. Why does that happen?
gpt
Vinegar is an acetic acid solution.  Acetic acid is a weak acid, and vinegar is usually pretty dilute, but even considering that it has a pH of about 2.5, which is vastly more acidic than water.

The heat coupled with the acidity breaks down whatever you got stuck to your pan faster than just water and heat would.