题目内容
配平下面化学方程式
________H2S+________H2SO4________S↓+________SO2↑+________H2O
________Ca(ClO)2+________HCl________CaCl2+________Cl2↑+________H2O
____P+____HNO3+____ ________H3PO4+____NO↑
________Na2Sx+________NaClO+________NaOH________Na2SO4+________NaCl+________H2O
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________.