Fehler:
CH3COOH %2B Na2CO3 %3D CH3COONa %2B CO2 %2B H2O
^Unerwartets Zeichen ('%')CH3COOH %2B Na2CO3 %3D CH3COONa %2B CO2 %2B H2O
^Unerwartets Zeichen ('%')