摘要:16.下列热化学方程式书写正确的是 ( ) A.2SO2+O2=2SO3 △H= -196.6kJ/mol B.2H2(g)+O2(g)=2H2O(l) △H=-571.6kJ/mol C.H2(g)+O2(g)=H2O(l) △H=-285.8kJ D.C(s)+O2(g)=CO2(g) △H=+393.5kJ/mol
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下列热化学方程式书写正确的是
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A.2SO2+O2=2SO3 ; △H= -196.6kJ/mol
B.2H2(g)+O2(g)=2H2O(l) ; △H=-571.6kJ/mol
C.H2(g)+ 1/2O2(g)=H2O(l) ; △H=-285.8kJ
D.C(s)+O2(g)=CO2(g) ; △H=+393.5kJ/mol
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B.2H2(g)+O2(g)=2H2O(l) ; △H=-571.6kJ/mol
C.H2(g)+ 1/2O2(g)=H2O(l) ; △H=-285.8kJ
D.C(s)+O2(g)=CO2(g) ; △H=+393.5kJ/mol
下列热化学方程式书写正确的是
A.2SO2+O2 2SO3; △H=-196.6kJ/mol
B.C(s)+O2(g)==CO2(g);△H=393.5kJ/mol
C.1/2H2(g)+1/2Cl2(g)==HCl(g);△H=-92.5kJ/mol
D.H+(aq)+OH-(aq)==H2O(l);△H=57.3kJ
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下列热化学方程式书写正确的是
A.2SO2+O2
2SO3;△H=-196.6kJ/mol
B.C(s)+O2(g)==CO2(g);△H=393.5kJ/mol
C.1/2H2(g)+1/2Cl2(g)==HCl(g);△H=-92.5kJ/mol
D.H+(aq)+OH-(aq)==H2O(l);△H=57.3kJ
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