lcannady6 lcannady6 29-01-2020 Chemistry contestada Cavendish prepared hydrogen in 1766 by the novel method of passing steam through a red-hot gun barrel:4H2O(g)+3Fe(s)⟶Fe3O4(s)+4H2(g)4H2O(g)+3Fe(s)⟶Fe3O4(s)+4H2(g)