Error:
HCl %2B KI %2B NaNO2 %3D H2O %2B I2 %2B NaCl %2B KCl %2B NO
^
Unexpected character ('%')HCl %2B KI %2B NaNO2 %3D H2O %2B I2 %2B NaCl %2B KCl %2B NO
^
Unexpected character ('%')