August 2018 2 22 Report
Dobrać współczynniki (uzgodnić strony równania) w podanych przykładach:
Fe₂O₃ + H₂ → Fe + H₂O
FeO + C → Fe + CO₂
Pb₃O₄ + H₂ → Pb + H₂O
Cu₂O + C → Cu + CO₂
CrO₃ + C → Cr + CO₂
P₂O₅ + C → P + CO₂
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