Many metals react with oxygen to form metal oxides. Potassium and sodium are soft metal which are easily cut exposing a shiny surface which changes to dull rapidly. The change from shiny to dull ...

In this case, aluminium atoms react with water molecules ... Naturally, the hydrogen gas generated is then free to combust with oxygen in the surrounding atmosphere. Furthermore, any molten ...

Iron oxide, aluminum, and a catalyst are placed in a flowerpot ... When the solvent evaporates, the phosphorous combines with oxygen in an exothermic reaction. The demonstration shown in this video is ...