某合金由两种金属元素组成，取该合金60g投入足量稀硫酸中，反应完全后，测得生成H23g，则合金的组成不可能是_刷题宝

题干

某合金由两种金属元素组成，取该合金60g投入足量稀硫酸中，反应完全后，测得生成H₂3g，则合金的组成不可能是（　　）

A：Fe与Zn

B：Mg与Cu

C：Na与Al

D：Al与Fe

上一题下一题 0.0难度选择题更新时间:2011-04-13 02:41:43

答案(点此获取答案解析）

A

同类题1

下列说法中，正确的是

同类题2

坐在行驶的船中的乘客，我们说他静止，选择的参照物是（　　）

同类题3

最容易找到苔藓植物的环境是(　　)

同类题4

补全对话。

A：Hey, Dale! You look tired．____

B：Yes，I did．Last night I watched a movie on TV

A：How was it?

B：It was great．What did you do last night?

A：____．

B：Oh，Eric?____

A：Yes，he did．

B：____

A：Yesterday morning．

B：____

A：He said it was very good. He visited many interesting places．

B：Mm London is an interesting city．If I have time，I'll go to visit it．

A．I went to visit Eric．

B．How long did he stay there?

C．When did he come back?

D．Did you go to bed late last night?

E．How was the weather there?

F．Did Eric come back from London?

G．How was his vacation?

同类题5

如图所示的体温计最小刻度为　 ____　℃，此时它的示数为　 ____　℃；

小学学科试题库

初中学科试题库

高中学科试题库