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Na + O2 → ?
? → Fe + O2
Ca + ? → CaCl2 + H2
Al + H2 → ?
? → H2 + Cl2
CuO + H2 → ? + Cu
Na + O2 → ?
? → Fe + O2
Ca + ? → CaCl2 + H2
Al + H2 → ?
? → H2 + Cl2
CuO + H2 → ? + Cu
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Answers & Comments
FeO2 → Fe + O2
Ca + 2HCl (разб.) → CaCl2 + H2
2Al + 3H2 → 2AlH3
2HCl → H2 + Cl2
CuO + H2 → H2O + Cu.