Ответ:
2Na+H₂= 2NaH
C+2H₂=CH₄
WO₃+3H₂= W+3H₂O
Fe₃O₄+ 4H₂=3Fe+4H₂O
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Ответ:
2Na+H₂= 2NaH
C+2H₂=CH₄
WO₃+3H₂= W+3H₂O
Fe₃O₄+ 4H₂=3Fe+4H₂O