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2 B + C ----> B₂C
2 Sb + 3S -----> Sb₂S₃
2 Cl₂O -----> 2Cl₂ + O₂₂
4 Fe + O₂---->2 Fe₂O
2 Cu₂O + C ------> 4 Cu + CO₂
Cu₂O + H₂ ------->2 Cu + H20
Dobierz współczynniki reakcji .
B+C ---->B*C
2Sb+3S---->Sb² S³
2Cl²O---->2Cl²+O²
4Fe+O²---->2Fe²O (cztery -pierwiastek 4 nie np :³ )
2Cu²O+C--->4Cu+cO²
Cu²O+H²---->2Cu+H²O