arabera Sharon Pérez 8 years ago
290
Honelako gehiago
Catalina Salazar.‑k egina
EDUARDO JAVIER‑k egina
Armando Taneco‑k egina
evelyn Ortegon‑k egina
Óxidos
Carbono (C)
Nitrógeno (N)
Azufre (S)
+Agua
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