Depụta paragraf dị mkpirikpi n'isiokwu a:  Onye X na-agwakọta kemịkal
N'ezie, lee paragraf dị mkpirikpi: Yahir bụ nwa akwụkwọ nwere mmasị n'ihe ọmụmụ Chemistry. Yahir kpebiri ịgwakọta ụfọdụ ọgwụ ọnụ iji hụ ihe ga-eme. Yahir gwakọtara acid hydrochloric na sodium hydroxide ọnụ, ihe si na ya pụta bụ mmeghachi omume kemịkal nke mepụtara gas chlorine.