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已知:(1)Zn(s) + 1/2O2(g)= ZnO(s),ΔH = -350 kJ·mol-1, (2)2Ag(s) + 1/2O2(g) = Ag2O(s),ΔH = -25 kJ·mol-1,...
题目内容:
已知:(1)Zn(s) + 1/2O2(g)= ZnO(s),ΔH = -350 kJ·mol-1,
(2)2Ag(s) + 1/2O2(g) = Ag2O(s),ΔH = -25 kJ·mol-1,
则Zn(s)+ Ag2O(s) = ZnO(s) + 2Ag(s)的ΔH等于
A. -375 kJ·mol-1 B. -325 kJ·mol-1
C. +375 kJ·mol-1 D. +325 kJ·mol-1
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