试题 试卷
题型:单选题 题类:常考题 难易度:容易
山西省吕梁市临县第一中学2017-2018学年高二上学期化学期中考试试卷
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 .
试题篮