您所在的当前位置：高中化学试题 >

离子共存

> 某无色溶液能与硅作用生成H 2，则溶液中不可能大量共存的离子组是（　　） A．H+、Ba2+、Mg2+、Cl- B．Cl-、CO32-、Cu2+、Mg2+ C．NO3-、SO42-、K+、Na+ D．NO3-、OH-、Ba2+、Cl-

问题：

发布时间：2024-09-07

某无色溶液能与硅作用生成H ₂，则溶液中不可能大量共存的离子组是（　　）

A．H⁺、Ba²⁺、Mg²⁺、Cl^- B．Cl^-、CO₃^2-、Cu²⁺、Mg²⁺

C．NO₃^-、SO₄^2-、K⁺、Na⁺ D．NO₃^-、OH^-、Ba²⁺、Cl^-

参考答案：

提问用户：wP***Kek

可能感兴趣的题目：

1 如图是空中加油的情景，我们说加油机是静止的，是以下列哪个物体为参照物 A.以加油机自己为参照物 B.以受油机为参照物 C.以地面为参照物 D.三种说法都不对
2 （8分）一个做匀加速直线运动的物体，从某时刻开始观察，2s内的位移为6m，第8s末的速度大小为10m/s，求该物体的初速度和加速度各是多大？
3 如图所示是“神舟七号”飞船在上升阶段，航天员被固定在飞船座舱内的情景，相对下列哪个参照物航天员是静止的 A.飞船 B.太阳 C.地球 D.月球
4 I graduated from a small public school in Mi chigan. One day, Mr. Ledy, our football coach, asked me to play football. I couldn"t help__ 1__: me, play football? I was six feet tall and was not much__ 2__a hundred pounds in weight. I thought that they might just need__ 3__fool to increase the number of the players. However, he was persistent(坚持的) and__ 4__I joined the football team. That__ 5__to be one of my best decisions as a kid. Our worst game__ 6__was the one against Crystal Falls. They beat us 56 to 6. Yeah! That was a football not a basketball__ 7__. We played them again when we were seniors. They__ 8__us again but the score was much more__ 9__, 30 to 20. Coach Ledy would not let that __ 10__again. He encouraged us to beat them, to pay them back. And we did so in the last game we played before__ 11__. I had scored 6 points alone in the game. Coach Ledy praised me. It was a huge__ 12__for me. Was I a football hero? Ha! Ha! No, I couldn"t__ 13__it without our team. The thing I learned through football was__ 14__. We won as a team and we__ 15__as a team. I think Mr. Ledy would be__ 16__of me if he knew that I had broken the athletic__ 17__at the University of Michigan. I"m__ 18__to him as I would not have today’s honor without him. I"ll __ 19__life"s final war with pain to win the victory; I"ll seek the lights of glory wholeheartedly and I"ll__ 20__working hard so as not to let him down. ( )1. A. shouting ( )2. A. up ( )3. A. another ( )4. A. immediately ( )5. A. took out ( )6. A. never ( )7. A. game ( )8. A. won ( )9. A. accessible ( )10. A. happen ( )11. A. liberation ( )12. A. honor ( )13. A. take ( )14. A. courage ( )15. A. united ( )16. A. proud ( )17. A. time ( )18. A. pleased ( )19. A. fight ( )20. A. take on B. screaming B. over B. other B. secretly B. turned out B. once B. team B. met B. comfortabl B. succeed B. closing B. hope B. manage B. devotion B. appeared B. fond B. record B. grateful B. join B. put on C. laughing C. more C. some C. personally C. gave off C. ever C. story C. beat C. sensitive C. spread C. graduation C. success C. solve C. teamwork C. prepared C. full C. date C. hopeful C. desire C. rely on D. applauding D. out D. any D. finally D. gave out D. again D. score D. fought D. acceptable D. develop D. school D. surprise D. explain D. contribution D. lost D. kind D. ability D. loyal D. enjoy D. keep on
5 There is ________ water in the glass, is there? A.a few B. C.a little D.few E.little
6 ________ is the book shop from here? A.How for B.How long C.How much D.How soon
7 在金属卤化物中，能用于人工降雨的物质是，用于制作照相感光底片的物质是。漂白粉的成份是，有效成分是，搅拌溶于水后，发生反应的化学方程式为。
8 在△ABC中，M是BC的中点，AM=2，P是AM的中点，则等于（） A．–1 B．–2 C． 2 D．–4
9 2004年1月4日美国的“勇气号”火星探测器成功登陆火星表面．为了使“勇气号”能安全着陆，需从进入火星大气层约12000公里/小时的速度减速到安全着陆速度．为此它经历了展开降落伞，展开安全气囊等过程（如图所示）．下列说法正确的是 ①展开降落伞增大了阻力 ②安全气囊与火星表面产生作用力时，没有发生形变 ③展开降落伞过程势能转化为动能 ④展开降落伞过程机械能转化为内能． A.①③ B.②③ C.①④ D.②④
10 已知函数 f(x)= 1 2 cos2x+sinxcosx- 1 2 sin2x （1）求f（x）的最小正周期、对称轴方程（2）求f（x）的单调区间（3）求f（x）在区间 [- π 8 ， π 2 ]的最大值和最小值．

某无色溶液能与硅作用生成H 2，则溶液中不可能大量共存的离子组是（ ） A．H+、Ba2+、Mg2+、Cl- B．Cl-、CO32-、Cu2+、Mg2+ C．NO3-、SO42-、K+、Na+ D．NO3-、OH-、Ba2+、Cl-

可能感兴趣的题目：

某无色溶液能与硅作用生成H ₂，则溶液中不可能大量共存的离子组是（　　）

A．H⁺、Ba²⁺、Mg²⁺、Cl^- B．Cl^-、CO₃^2-、Cu²⁺、Mg²⁺

C．NO₃^-、SO₄^2-、K⁺、Na⁺ D．NO₃^-、OH^-、Ba²⁺、Cl^-