Chyba:
%28COO%292%3A2- %2B MnO4%3A- %2B H%3A%2B %3D Mn%3A2%2B %2B CO2 %2B H2O
^
Neočakávaný ('%')%28COO%292%3A2- %2B MnO4%3A- %2B H%3A%2B %3D Mn%3A2%2B %2B CO2 %2B H2O
^
Neočakávaný ('%')