试题 试卷
题型:单选题 题类:常考题 难易度:普通
元素周期律和元素周期表的综合应用a 40
H2S+ZnO═ZnS+H2O;
C2H5SH+ZnO═ZnS+C2H4+H2O;
C2H5SH+H2═C2H6+H2S;
COS+H2═CO+H2S;
CS2+4H2═CH4+2H2S
试题篮