(1)C₂H₄+O₂-点燃-CO₂+H₂o 配平(2)NaOH+CuSO₄-Cu(OH)₂↓+Na₂SO₄(3)Fe₂O₃+H₂-高温-Fe+H₂O(4)Fe₂O₃+CO-高温-Fe+CO₂

问题描述:

(1)C₂H₄+O₂-点燃-CO₂+H₂o 配平
(2)NaOH+CuSO₄-Cu(OH)₂↓+Na₂SO₄(3)Fe₂O₃+H₂-高温-Fe+H₂O(4)Fe₂O₃+CO-高温-Fe+CO₂