Error:
Cl2 %2B KOH %2B Cr2%28SO4%293 %3D H2O %2B K2SO4 %2B KCl %2B K2CrO4
^
Unexpected character ('%')Cl2 %2B KOH %2B Cr2%28SO4%293 %3D H2O %2B K2SO4 %2B KCl %2B K2CrO4
^
Unexpected character ('%')