Fehler:
FeS2 %2B O2 %2B H2O %3D Fe%3A3%2B %2B H%3A%2B %2B SO4%3A2-
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Unerwartets Zeichen ('%')FeS2 %2B O2 %2B H2O %3D Fe%3A3%2B %2B H%3A%2B %2B SO4%3A2-
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Unerwartets Zeichen ('%')