题型：单选题 题类：常考题 难易度：普通
广西宾阳县宾阳中学2019-2020学年高二上学期化学9月月考试卷
①C(s)＋O2(g)=CO2(g) ΔH1 C(s)＋O2(g)=CO(g) ΔH2
②S(s)＋O2(g)=SO2(g) ΔH3 S(g)＋O2(g)=SO2(g) ΔH4
③H2(g)＋O2(g)=H2O(l) ΔH5 2H2(g)＋O2(g)=2H2O(l) ΔH6
④CaCO3(s)=CaO(s)＋CO2(g) ΔH7 CaO(s)＋H2O(l)=Ca(OH)2(aq) ΔH8
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