题型:单选题 题类:常考题 难易度:普通
贵州省铜仁市第一中学2018-2019学年高二上学期化学期中考试试卷
①C(s)+ O2(g)= CO2(g)△H1 C(s)+1/2 O2(g)= CO(g)△H2
②S(s)+ O2(g)= SO2(g)△H3 S(g)+ O2(g)= SO2(g)△H4
③H2(g)+1/2 O2(g)= H2O(l)△H5 2H2(g)+ O2(g)= 2H2O(l)△H6
④CaCO3(s))= CO2(g)+ CaO(s)△H7 CaO(s)+ H2O(l)= Ca(OH)2(s) △H8
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