您所在的当前位置：高中化学试题 >

离子共存

> 下列各组离子中，在溶液中不能大量共存的是（　　） A．H+、Cl-、Na+、NO3- B．Ag+、NO3-、Cl-、Na+ C．Ca2+、Na+、Cl-、K+ D．Na+、H+、Cl-、SO42-

问题：

发布时间：2024-09-10

下列各组离子中，在溶液中不能大量共存的是（　　）

A．H⁺、Cl^-、Na⁺、NO₃^- B．Ag⁺、NO₃^-、Cl^-、Na⁺

C．Ca²⁺、Na⁺、Cl^-、K⁺ D．Na⁺、H⁺、Cl^-、SO₄^2-

参考答案：

提问用户：Hv***5dL

可能感兴趣的题目：

1 一个质量为2kg的小球以水平速度5m/s向右运动，与挡板碰撞后，以3m/s的水平速度反向弹回，则( ) A．它的动量变化量的大小为4kg·m/s B．它的动量变化量的大小为16kg·m/s C．它的动量变化量的方向与初动量方向相反 D．它的动量变化量的方向与初动量方向相同
2 上海世博会的印度馆设计灵感全部源自印度最古老、最气势恢宏的建筑，下列建筑中给设计人员带来灵感的是 A. B. C. D.
3 两颗人造地球卫星A、B的轨道半径之比为1：2，则它们的运行的线速度之比v A：V B为 ( ) A．1：2 B．1：4 C．：1 D．4：1
4 阅读理解。 Freda Bright says, "Only in opera do people die of love." It"s true. You really can"t love somebody to death. I"ve known people to die from no love, but I"ve never known anyone to be loved to death. We just can"t love one another enough. A heart-warming story tells of a woman who finally decided to ask her boss for a raise in salary. All day she felt nervous and late in the afternoon she summoned the courage to approach her employer. To her delight, the boss agreed to a raise. The woman arrived home that evening to a beautiful table set with their best dishes. Candles were softly glowing. Her husband had come home early and prepared a festive meal. She wondered if someone from the office had tipped him off, or... did he just somehow know that she would not get turned down? She found him in the kitchen and told him the good news. They embraced and kissed, t hen sat down to the wonderful meal. Next to her plate the woman found a beautifully lettered note. It read, "Congratulations, darling! I knew you"d get the raise! These things will tell you how much I love you." Following the supper, her husband went into the kitchen to clean up. She noticed that a second card had fallen from his pocket. Picking it off the floor, she read, "Don"t worry about not getting the raise! You deserve(值得) it anyway! These things will tell you how much I love you." Someone has said that the measure of love is when you love without measure. What this man feels for his wife is total acceptance and love, whether she succeeds or fails. His love celebrates her victories and comforts her wounds. He stands with her, no matter what life throws in their direction. Upon receiving the Nobel Peace Prize, Mother Teresa said, "What can you do to promote world peace? Go home and love your family." And love your friends. Love them without measure. 1. What does Freda Bright mean by saying "Only in opera do people die of love"?_____. A. No love in the world is believable. B. Love is one thing, and life is another. C. Love in operas is truly touching. D. Love can survive forever, though people die at different ages. 2. That the husband prepared her a second letter about her raise suggests that____. A. he loves her because he believes that she can receive a raise. B. he has a great way to promote his wife"s love towards him. C. he had a false love for people even if the person is his wife. D. he loves his family member truly, whether they are in good condition or not. 3. From the text, we might say the author ____. A. refuses any spiritual emotions. B. c riticizes the attitude of doubt of love. C. doesn"t believe there is true love in the world. D. thinks the true love does not expect repayment.
5 已知＝（—4,2,x），＝(2,1,3),且 ⊥ ，则x＝。
6 声音三的特征是指 A.音调响度音色 B.音调频率响度 C.音调振幅音色 D.频率振幅音色
7 12．给出以下一个算法的程序框图(图2)，如果，，，则输出的结果是．（注：框图中的的赋值符号“＝”也可以写成“←”或“：＝”）
8 质量相同的两个物体，分别在地球表面（不计空气阻力）和月球表面以相同的初速度竖直上抛．比较两种情况，下列说法中正确的有 A．物体在地球表面时的惯性比物体在月球表面时的惯性大 B．在上升到最高点的过程中，它们受到的外力的冲量大小不相等 C．在上升到最高点的过程中，它们克服重力做的功相等 D．落回抛出点时，重力做功的瞬时功率相等
9 The jacket is ________ than the dress or the trousers. A.expensive B.very expensive C.more expensive D.the most expensive
10 已知向量 a =(cosx，sinx) ，& b =(cosx，-sinx) ．（Ⅰ）若 f(x)= a • b ，求 f( π 8 )；（Ⅱ）g（x）=f（x）+2sinxcosx，求g（x）的周期和最小值．

下列各组离子中，在溶液中不能大量共存的是（ ） A．H+、Cl-、Na+、NO3- B．Ag+、NO3-、Cl-、Na+ C．Ca2+、Na+、Cl-、K+ D．Na+、H+、Cl-、SO42-

可能感兴趣的题目：

下列各组离子中，在溶液中不能大量共存的是（　　）

A．H⁺、Cl^-、Na⁺、NO₃^- B．Ag⁺、NO₃^-、Cl^-、Na⁺

C．Ca²⁺、Na⁺、Cl^-、K⁺ D．Na⁺、H⁺、Cl^-、SO₄^2-