2Zns的知识精选

已知:2Zn(s)+O2(g)=2ZnO(s)  △H1=-701.0kJ•mol-12Hg(l)+O2(g)...
问题详情:已知:2Zn(s)+O2(g)=2ZnO(s)  △H1=-701.0kJ•mol-12Hg(l)+O2(g)=2HgO(s)  △H2=-181.6kJ•mol-1,则Zn(s)+HgO(g)=ZnO(s)+Hg(l)的△H为A.+519.4kJ•mol-1   B.-181.6kJ•mol-1   C.-259.7kJ•mol-1   D.-519.4kJ•mol-1...
已知:2Zn(s)+O2(g)=2ZnO(s) ΔH=-701.0kJ·mol-1;2Hg(l)+O2(g)=...
问题详情:已知:2Zn(s)+O2(g)=2ZnO(s)ΔH=-701.0kJ·mol-1;2Hg(l)+O2(g)=2HgO(s)ΔH=-181.6kJ·mol-1。则反应Zn(s)+HgO(s)=ZnO(s)+Hg(l)的ΔH为()A.+519.4kJ·mol-1                  B.+259.7kJ·mol-1C.-259.7kJ·mol-1...
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