题型:问答题 简答题 配平化学方程式(1)Fe3O4+COFe+CO2_____________(2)C2H4+O2CO2+H2O_____________ (3)MnO2+HCl MnCl2+Cl2↑+ H2O___________ (4)CuSO4+NaOH═Cu(OH)2↓+Na2SO4 ____________(5)N2H4+N2O4N2+H2O ____________ (6)H2+WO3W+H2O____________. 查看答案