質問: - Câu hỏi của Nguyễn Ngân KClO3 -> A -> B -> C -> D -> Pb. B -> NaOH
回答: \(3KClO_3\underrightarrow{t^o}2KCl+3O_2\left(A\right)\\ O_2+2H_2\underrightarrow{t^o}2H_2O\left(B\right)\\ H_2O\underrightarrow{dp}H_2\left(D\right)+\frac{1}{2}O_2\\ PbO+H_2\underrightarrow{t^o}Pb+H_2O\\ Na_2O+H_2O\left(B\right)\rightarrow2NaOH\)