Redox (ragewa-oxidation) halayen sun hada da duk halayen sunadarai wanda kwayoyin halittar su suka canza ta hanyar samun electrons (ragewa) ko rasa electrons (oxidation). Abubuwan da ke da ikon yin oxidizing wasu abubuwa ana cewa suna oxidative kuma an san su da oxidizing agents, oxidants ko oxidizers. Wani oxidant yana cire electrons daga wani abu. Hakazalika, abubuwan da ke da ikon rage wasu abubuwa ana cewa suna ragewa kuma an san su da ragewa, ragewa, ko ragewa. Tambaya: Menene oxidants cire daga wasu abubuwa?
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