August 2018 2 31 Report
PILNE !!!

Zadanie 1.
Dobierz współczynniki reakcji .
B+C ---->B*C
Sb+S---->Sb² Sb³
Cl²O---->Cl²+O²
Fe+O²---->Fe²O (cztery -pierwiastek 4 nie np :³ )
Cu²O+C--->Cu+O²
Cu²O+H²---->Cu+H²O
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