Fehler:
C %2B Cl2 %2B H2O %3D Cl%3A- %2B H%3A%2B %2B CO2
^
Unerwartets Zeichen ('%')C %2B Cl2 %2B H2O %3D Cl%3A- %2B H%3A%2B %2B CO2
^
Unerwartets Zeichen ('%')