Odpowiedź:
CaCO₃ --> CaO + CO₂
Al₂O₃ + 6HBr --> 2AlBr₃ + 3H₂O
Fe + 2HCl --> FeCl₂ + H₂
2Cr + 3H₂S --> Cr₂S₃ + 3H₂
N₂ + O₂ --> 2NO
2KClO₃ --> 2KCl + 3O₂
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Odpowiedź:
CaCO₃ --> CaO + CO₂
Al₂O₃ + 6HBr --> 2AlBr₃ + 3H₂O
Fe + 2HCl --> FeCl₂ + H₂
2Cr + 3H₂S --> Cr₂S₃ + 3H₂
N₂ + O₂ --> 2NO
2KClO₃ --> 2KCl + 3O₂