试题 试卷
题型:单选题 题类:常考题 难易度:普通
2016-2017学年黑龙江、吉林两省八校高二上学期期中化学试卷
①CH4(g)+O2(g)═CO2(g)+2H2O(g)△H1
CH4(g)+2O2(g)═CO2(g)+2H2O(1)△H2
②NaOH(aq)+ H2SO4(浓)═ Na2SO4(aq)+H2O(1)△H3
NaOH (aq)+CH3COOH( aq)═CH3COONa( aq)+H2O(1)△H4 .
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