单选题 适中0.65 引用1 组卷128
如下图所示,向溶液a中加入溶液b,灯泡亮度会出现“亮—灭—亮”变化的是
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/8/a8d21e09-dd1b-4ad4-959e-75e84da1f840.png?resizew=356)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/8/a8d21e09-dd1b-4ad4-959e-75e84da1f840.png?resizew=356)
选项 | A | B | C | D |
溶液a | ||||
溶液b |
A.A | B.B | C.C | D.D |
21-22高一上·重庆北碚·阶段练习
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向溶液a中加入溶液b,灯泡亮度不会出现“亮一灭(或暗)—亮”变化的是
![](https://img.xkw.com/dksih/QBM/2021/9/25/2815533462904832/2815667187965952/STEM/4aa1d456ea0e49f7b806498a2dd89e6a.png?resizew=312)
![](https://img.xkw.com/dksih/QBM/2021/9/25/2815533462904832/2815667187965952/STEM/4aa1d456ea0e49f7b806498a2dd89e6a.png?resizew=312)
选项 | A | B | C | D |
试剂a | Ba(OH)2 | Ba(OH)2 | Ca(OH)2 | Ca(OH)2 |
试剂b | CuSO4 | H2SO4 | NaHCO3 | NH4HCO3 |
A.A | B.B | C.C | D.D |
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