What is the common name of the chemical compound "dihydrogen monoxide"?

The story behind the answer

“Dihydrogen” means two hydrogen atoms (H2), and “monoxide” means one oxygen atom (O). Put them together and you get H2O—water. The name follows systematic chemical nomenclature, describing the molecule’s composition rather than its common name.

Fun context: “Dihydrogen monoxide” is often used in a satirical hoax to show how scientific-sounding terms can make even ordinary substances seem scary. Water’s unique properties—polarity, high specific heat, and excellent solvent ability—make it essential for life and responsible for phenomena like temperature regulation and nutrient transport. Memory tip: di- = 2 hydrogens, mono- = 1 oxygen; H2 + O → H2O.