Question

Hoàn thành sơ đồ phản ứng sau: MnO2 → Cl2 → HCl → NaCl → Cl2 → Br2 → I2

Answer 1

\(MnO_2+4HCl\underrightarrow{t^o}MnCl_2+Cl_2+2H_2O\)

\(Cl_2+H_2\underrightarrow{as}2HCl\)

\(NaOH+HCl\rightarrow NaCl+H_2O\)

\(2NaCl+2H_2O\underrightarrow{đpcmn}2NaOH+H_2+Cl_2\)

\(Cl_2+2NaBr\rightarrow2NaCl+Br_2\)

\(2NaI+Br_2\rightarrow2NaBr+I_2\)

Answer 2

\(2MnO_2+4HCl\rightarrow2MnCl_2+Cl_2+2H_2O\)

\(Cl_2+H_2\rightarrow2HCl\)

\(HCl+NaOH\rightarrow NaCl+H_2O\)

\(2NaCl\rightarrow2Na+Cl_2\)

\(Cl_2+2HBr\rightarrow2HCl+Br_2\)