MILO MURPHY´S LAW, THE THREE STATES OF MATTER AND THE DIFFICULTIES INHERENT TO SCIENCES TEACHING

The teacher does her best trying to explain a classic example, the chemical reaction between vinegar (dilute acetic acid) and soda (sodium bicarbonate) to generate carbon dioxide gas. It´s an endotermic reaction indeed, but with Milo is always a disaster.

NaHCO₃(s) + CH₃COOH(l) → CO₂(g) + H₂O(l) + Na+(aq) + CH₃COO-(aq)

with s = solid, l = liquid, g = gas, aq = aqueous or in water solution

She overcomes several mishaps but ends up having the leading role in a pretty cool video with the David Bowie style