12.將硫化氫通入不同濃度的硝酸溶液中.發(fā)生下列反應: ①3H2S+2HNO33S↓+2NO↑+4H2O ②H2S+2HNO3S↓+2NO2↑+2H2O ③4H2S+2HNO34S↓+NH4NO3+3H2O ④5H2S+2HNO3==5S↓+N2↑+6H2O 結合所學有關硝酸的知識.判斷硝酸濃度由大到小的順序正確的是( ) A.①>②>③>④ B.②>①>④>③ C.②>①>③>④ D.④>③>①>② 查看更多

 

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將硫化氫通入不同濃度的硝酸溶液中,發(fā)生下列反應:

①3H2S+2HNO33S↓+2NO↑+4H2O

②H2S+2HNO3S↓+2NO2↑+2H2O

③4H2S+2HNO34S↓+NH4NO3+3H2O

④5H2S+2HNO35S↓+N2↑+6H2O

結合所學有關硝酸的知識,判斷硝酸濃度由大到小的順序是(    )

A.①>②>③>④                           B.②>①>④>③

C.②>①>③>④                           D.④>③>①>②

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將硫化氫通入不同濃度的硝酸溶液中,發(fā)生下列反應:

①3H2S+2HNO33S↓+2NO↑+4H2O

②H2S+2HNO3S↓+2NO2↑+2H2O

③4H2S+2HNO34S↓+NH4NO3+3H2O

④5H2S+2HNO3====5S↓+N2↑+6H2O

結合所學有關硝酸的知識,判斷硝酸濃度由大到小的順序是       (    )      

A.①>②>③>④      

B.②>①>④>③

C.②>①>③>④        

D.④>③>①>②

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將硫化氫通入不同濃度的硝酸溶液中,發(fā)生下列反應:①3H2S+2HNO33S↓+

2NO↑+4H2O;②H2S+2HNO33S↓+2NO2↑+2H2O;③4H2S+2HNO34S↓+NH4N

+3H2O;④5H2S+2HNO35S↓+2N2↑+6H2O。結合所學有關硝酸的知識,判斷硝酸濃度由大到小的順序,正確的是                                             (     )

A.①>②>③>④ B.②>①>④>③ C.②>①>③>④ D.④>③>②>①

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將硫化氫通入不同濃度的硝酸溶液中,發(fā)生下列反應:

①3H2S+2HNO33S↓+2NO↑+4H2O

②H2S+2HNO3S↓+2NO2↑+2H2O

③4H2S+2HNO34S↓+NH4NO3+3H2O

④5H2S+2HNO3====5S↓+N2↑+6H2O

結合所學有關硝酸的知識,判斷硝酸濃度由大到小的順序是(    )

A.①>②>③>④                           B.②>①>④>③

C.②>①>③>④                           D.④>③>①>②

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將硫化氫通入不同濃度的硝酸溶液中,發(fā)生下列反應:①3H2S+2HNO33S↓+
2NO↑+4H2O;②H2S+2HNO33S↓+2NO2↑+2H2O;③4H2S+2HNO34S↓+NH4N
+3H2O;④5H2S+2HNO35S↓+2N2↑+6H2O。結合所學有關硝酸的知識,判斷硝酸濃度由大到小的順序,正確的是                                            (     )
A.①>②>③>④B.②>①>④>③C.②>①>③>④D.④>③>②>①

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