Noocyada gubashada qaarkood ayaa baabi'iya ogsijiinta, halka kuwa kalena aysan samayn.
Gubashada waa mid xoogan, Dareen-celinta oksaydheynta-yaraynta kuleylka-sii daynta, loo baahan yahay saddex walxood: oksidant ah, dhimis ah, iyo heer kul gaadhaysa xadka dabka.
Halka ogsijiinta ay tahay oksidizer caan ah, ma aha wakiilka kaliya ee awooda doorkan. Tusaale ahaan, ee gubanaya hydrogen, hydrogen iyo gaaska chlorine ayaa la cunaa halkii oksijiinta.