When metals react with oxygen, metal oxides are formed. The speed of the reaction depends on the reactivity of the metal. Watch this video for a practical demonstration of reacting metals with oyxgen.

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 ...

Atoms of non-noble metals migrate out and form so-called "SAC-like structures" (single atom catalyst-like). These catalysts mediate two important reactions, namely the oxygen evolution and ...