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已知:(1) Zn(s)+ O2(g)=ZnO(s) △H=-348.3 kJ·mol-1 (2)2Ag(s)+O2(g)=Ag2O(s)△H=-31.0kJ·mol-1 则Zn(s)+Ag2O(s)...
题目内容:
已知:(1) Zn(s)+ O2(g)=ZnO(s) △H=-348.3 kJ·mol-1
(2)2Ag(s)+O2(g)=Ag2O(s)△H=-31.0kJ·mol-1
则Zn(s)+Ag2O(s)=ZnO(s)+2Ag(s)的△H等于( )
A. -379.3 kJ·mol-1 B. -317.3 kJ·mol-1
C. -332.8 kJ·mol-1 D. +317.3 kJ·mol-1
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