Error:
K2Cr2O7 %2B KCl %2B H2O %3D KClO4 %2B CrCl3 %2B KOH
^
Unexpected character ('%')K2Cr2O7 %2B KCl %2B H2O %3D KClO4 %2B CrCl3 %2B KOH
^
Unexpected character ('%')