Using a combination of experiments and computer simulations, scientists now understand how oxygen affects the way the catalyst copper oxide (CuO) reacts with hydrogen (H 2) versus carbon monoxide ...

Twenty years ago this spring, they discovered that a crystalline compound of lanthanum, barium, copper and oxygen becomes superconducting at a temperature 12 K higher than any material known ...

They represent the number of atoms of each element in the formula. For example, CO₂ contains one carbon atom and two oxygen atoms. For example, when a strip of magnesium is heated in a Bunsen ...