已知:(1)Zn(s)+O2(g)===ZnO(s),ΔH= -348.3 kJ·mol-1,
(2)2Ag(s)+ O2(g)=== Ag2O(s),ΔH= -31.0 kJ·mol-1,则Zn(s)+ Ag2O(s) ===ZnO(s)+ 2Ag(s)的ΔH等于( )
A.-317.3 kJ·mol-1 B.-379.3 kJ·mol-1 C.-332.8 kJ·mol-1 D.317.3 kJ·mol-1
高二化学选择题简单题
已知:(1)Zn(s)+1/2O2(g)==ZnO(s),ΔH= -348.3kJ/mol (2) 2Ag(s)+1/2 O2(g)== Ag2O(s),ΔH= -31.0kJ/mol 则ZnO(s)+ 2Ag(s)== Zn(s)+ Ag2O(s)的ΔH等于( )
A. -317.3kJ/mol B. -379.3kJ/mol C. -332.8 kJ/mol D. 317.3 kJ/mol
高二化学单选题中等难度题查看答案及解析
高二化学解答题中等难度题查看答案及解析
高二化学解答题中等难度题查看答案及解析
已知:①Zn(s)+O2(g)ZnO(s) ΔH=−348.3 kJ·mol−1
②2Ag(s)+O2(g)Ag2O(s) ΔH=−31.0 kJ·mol−1,则Zn(s)+Ag2O(s)ZnO(s)+2Ag(s)的ΔH等于
A.−317.3 kJ·mol−1 B.−379.3 kJ·mol−1
C.−332.8 kJ·mol−1 D.+317.3 kJ·mol−1
高二化学选择题中等难度题查看答案及解析
已知:(1)Zn(s)+O2(g)=== ZnO(s),ΔH1= -348.3 kJ·mol-1,
(2)2Ag(s)+ O2(g)=== Ag2O(s),ΔH2=-31.0 kJ·mol-1,
则Zn(s)+ Ag2O(s) === ZnO(s)+ 2Ag(s)的ΔH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
高二化学选择题简单题查看答案及解析
已知:(1)Zn(s)+O2(g)=== ZnO(s),ΔH=" -348.3" kJ·mol-1,
(2)2Ag(s)+O2(g)=== Ag2O(s),ΔH=" -31.0" kJ·mol-1,
则Zn(s)+ Ag2O(s) === ZnO(s)+ 2Ag(s)的ΔH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
高二化学单选题简单题查看答案及解析
已知:(1)Zn(s)+O2(g)=== ZnO(s),ΔH=" -348.3" kJ·mol-1,
(2)2Ag(s)+O2(g)=== Ag2O(s),ΔH=" -31.0" kJ·mol-1,
则Zn(s)+ Ag2O(s) === ZnO(s)+ 2Ag(s)的ΔH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
高二化学单选题简单题查看答案及解析
已知:(1)Zn(s)+O2(g)===ZnO(s),ΔH= -348.3 kJ·mol-1,
(2)2Ag(s)+ O2(g)=== Ag2O(s),ΔH= -31.0 kJ·mol-1,则Zn(s)+ Ag2O(s) ===ZnO(s)+ 2Ag(s)的ΔH等于( )
A.-317.3 kJ·mol-1 B.-379.3 kJ·mol-1 C.-332.8 kJ·mol-1 D.317.3 kJ·mol-1
高二化学选择题简单题查看答案及解析
已知:(1)Zn(s)+O2(g)===ZnO(s),ΔH1= -348.3 kJ·mol-1,
(2)2Ag(s)+ O2(g)=== Ag2O(s),ΔH2=-31.0 kJ·mol-1,
则Zn(s)+ Ag2O(s) ===ZnO(s)+ 2Ag(s)的ΔH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
高二化学选择题简单题查看答案及解析
已知:(1)Zn(s)+O2(g)=== ZnO(s),ΔH= -348.3 kJ·mol-1,
(2)2Ag(s)+ O2(g)=== Ag2O(s),ΔH= -31.0 kJ·mol-1,
则Zn(s)+ Ag2O(s) === ZnO(s)+ 2Ag(s)的ΔH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
高二化学选择题简单题查看答案及解析