题目内容
配平下面化学方程式
________Na2Sx＋________NaClO＋________NaOH________Na2SO4＋________NaCl＋________H2O
________Ca(ClO)2＋________HCl________CaCl2＋________Cl2↑＋________H2O
________H2S＋________H2SO4________S↓＋________SO2↑＋________H2O
____P＋____HNO3＋____ ________H3PO4＋____NO↑
配平下面化学方程式(将系数填写在括号内)
(1)( )FeO＋( )HNO3＝( )Fe(NO3)3＋( )NO↑＋________
(2)( )Cu2S＋( )HNO3＝( )Cu(NO3)2＋( )NO↑＋( )H2SO4＋( )H2O
其中(2)中还原剂是________，氧化产物为________.
________Na2SO4＋________NaCl＋________H2O
________Na2SO4＋________NaCl＋________H2O
________CaCl2＋________Cl2↑＋________H2O
________S↓＋________SO2↑＋________H2O
____H3PO4＋____NO↑