Объяснение:
a) NaOH + HCl → NaCl + H₂O;
6) 2Cu + O2 → 2CuO;
2) Fe2O3 + 3H2 → 2Fe + 3H₂O.
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Объяснение:
a) NaOH + HCl → NaCl + H₂O;
6) 2Cu + O2 → 2CuO;
2) Fe2O3 + 3H2 → 2Fe + 3H₂O.