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ZnO+C ------> Zn+CO
2.d
2Cu₂O + Cu₂S ---->6Cu+SO₂
3.f
3Mn₃O₄ + 8Al ---> 9Mn+4Al₂O₃
4.a
FeCr₂O₄ + 4C ---> 2Cr + Fe + 4CO
5.c
MoO₃ +2 H₃ ---> Mo +3 H₂O
Ps. Wstawiłam współczynniki stechiometryczne ;))
Pozdrawiam :)