Hoàn thành chuỗi phản ứng sau: Cl2->FeCl3-> BaCl2->NaCl->Cl2 nước Javen

* Hướng dẫn giải

$\begin{array}{l}\left(1\right)3C{l}_2+2Fe\stackrel{t^o}{\to }2FeC{l}_3\\ \left(2\right)2FeC{l}_3+2Ba{\left(OH\right)}_2\to 2Fe{\left(OH\right)}_3\downarrow +3BaC{l}_2\\ \left(3\right)BaC{l}_2+N{a}_{2}S{O}_4\to BaS{O}_4\downarrow +2NaCl\\ \left(4\right)2NaCl+2H_{2}O\underset{comangngan}{\overset{dienphan}{\to }}2NaOH+C{l}_2+H_2\\ \left(5\right)2NaOH+C{l}_2\to NaCl+NaClO+H_{2}O\end{array}$