Error:
Zn %2B MnO2 %2B NH4Cl %3D ZnCl2 %2B Mn2O3 %2B NH3 %2B H2O
^Unexpected character ('%')Zn %2B MnO2 %2B NH4Cl %3D ZnCl2 %2B Mn2O3 %2B NH3 %2B H2O
^Unexpected character ('%')