Error:
CrCl3 %2B Na2CO3 %2B H2O %3D Cr%28OH%293 %2B NaCl %2B CO2
^Unexpected character ('%')CrCl3 %2B Na2CO3 %2B H2O %3D Cr%28OH%293 %2B NaCl %2B CO2
^Unexpected character ('%')