Współczynnik stechiometryczny (wyrównaj strony):
K+Cl2 -> KCl
Fe+ Cl2 -> FeCl3
Al+ O2 -> Al2O3
Fe+S -> Fe2S3
Fe2O3+ H2 -> Fe+ H2O
Ca+ N2 -> Ca3N2
H2+N2 -> Ca3N2
Ag2O -> Ag+ O2
P4+ O2 -> P4O10
CuO+ C -> Cu+ CO2
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2K + Cl₂ -> 2KCl
2Fe + 3Cl₂ -> 2FeCl₃
4Al + 3 O₂ -> 2Al₂O₃
2Fe + 3S -> Fe₂S₃
Fe₂O₃ + 3H₂ -> 2Fe + 3H₂O
3Ca + N₂ -> Ca₃N₂
3H₂ + N₂ -> 2NH₃
2Ag₂O -> 4Ag + O₂
P₄ + 5 O₂ -> P₄O₁₀
2CuO + C -> 2Cu+ CO₂