问题
选择题
将26g某金属混合物投入到足量的稀硫酸中，共收集到2g氢气，该金属混合物的组成可能是[ ]
A.Mg和Zn
B.Fe和Zn
C.Zn和Cu
D.Cu和Fe
答案
答案：A
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将26g某金属混合物投入到足量的稀硫酸中，共收集到2g氢气，该金属混合物的组成可能是[ ]
A.Mg和Zn
B.Fe和Zn
C.Zn和Cu
D.Cu和Fe
答案：A
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| Hello, my friends! I'm Mary. This is my grandfather. He is sixty-two. He likes vegetables. This is my grandmother. She's fifty-eight. She likes noodles. Look at this young man. He's my uncle. He's twenty-nine. He likes hamburgers very much. And this is my aunt. She's thirty-seven. She likes fish.
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