Error:
CrI3 %2B Cl2 %2B H2O %3D H2CrO4 %2B HIO3 %2B HCl
^Unexpected character ('%')CrI3 %2B Cl2 %2B H2O %3D H2CrO4 %2B HIO3 %2B HCl
^Unexpected character ('%')