Error:
NaOH %2B PbCl2 %2B NaClO %3D H2O %2B NaCl %2B PbO2
^
Unexpected character ('%')NaOH %2B PbCl2 %2B NaClO %3D H2O %2B NaCl %2B PbO2
^
Unexpected character ('%')