试题 试卷
题型:单选题 题类:常考题 难易度:普通
黑龙江省哈师大青冈实验中学2020-2021学年高二上学期化学开学考试试卷
H2S+ZnO═ZnS+H2O;
C2H5SH+ZnO═ZnS+C2H4+H2O;
C2H5SH+H2═C2H6+H2S;
COS+H2═CO+H2S;
CS2+4H2═CH4+2H2S
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