Hydrogen gas was first artificially produced in the early 16th century, via the mixing of metals with acids. In 1766–81, Henry Cavendish was the first to recognize that hydrogen gas was a discrete substance, and that it produces water when burned, a property which later gave it its name: in Greek, hydrogen means "water-former". COUNT 4
QSN1 When was hydrogen gas artificially produced for the first time? ANS1 early 16th century QSN2 Who first recognized that hydrogen was a discrete substance? ANS2 Henry Cavendish QSN3 When it is burned what does hydrogen make? ANS3 water QSN4 What is the Greek translation for hydrogen? ANS4 water-former