Ответ:
1) H2+ZnO=Zn+H2O
3H2+Al2O3=3H2o+2Al
3H2+ Fe2O3=2Fe+3H2O
2)-
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Ответ:
1) H2+ZnO=Zn+H2O
3H2+Al2O3=3H2o+2Al
3H2+ Fe2O3=2Fe+3H2O
2)-