Nkebi ahịrịokwu 1: J. Chlorine Free - chlorine radical na ikuku na-emekwa ihe na methane. Ahịrịokwu nke abụọ: J. Chlorine - Radical - Chlorine na ikuku na - emekwa ihe na methane. Ajụjụ: Ọ̀ bụ otu ihe ka ahịrịokwu nke mbụ na nke abụọ pụtara? Ee ma ọ bụ Ee e?
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