问题
推断题
下图是某实验中各物质间的变化关系，请回答：
(1)气体C是________(填化学式，下同)，固体纯净物E是________。
(2)写出①的化学方程式_______________。
答案
（1）H2、Cu
（2）CuO+H2SO4==CuSO4+H2O
搜题请搜索小程序“爱下问搜题”
下图是某实验中各物质间的变化关系，请回答：
(1)气体C是________(填化学式，下同)，固体纯净物E是________。
(2)写出①的化学方程式_______________。
（1）H2、Cu
（2）CuO+H2SO4==CuSO4+H2O
根据对话情景和内容，从对话后所给的选项中选出能填入每一空白处的最佳选项。选项有两个为多余选项。（此题请答在答题纸上） —He is very good, isn’t he? — 6 —I said the singer was great. — 7 —Have you seen him here before? — 8 I think he probably writes the music and words because I’ve never heard any of the songs before. —It’s not fair. — 9 —People with musical ability like that having to stand here to make a living. — 10
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