您所在的当前位置：高中化学试题 >

离子共存

> 一定能在下列溶液中大量共存的离子组是 [ ] A．含有大量Fe 2+的溶液： Na +、NH 4 +、ClO -、SO 4 2- B．c(H +)=l×10 -13mol·L -1的溶液：Na +、Ca 2+、Mg 2+、Ba 2+ C．含有大量AlO 2 -的溶液：Na +、K +、NO 3 -、CO 3 2- D．含有大量NO 3 -的溶液：H +、SiO 3 2-、SO 4 2-、Cl -

问题：

发布时间：2024-09-07

一定能在下列溶液中大量共存的离子组是
[ ]
A．含有大量Fe ²⁺的溶液： Na ⁺、NH ₄ ⁺、ClO ^-、SO ₄ ^2-B．c(H ⁺)=l×10 ^-13mol·L ^-1的溶液：Na ⁺、Ca ²⁺、Mg ²⁺、Ba ²⁺
C．含有大量AlO ₂ ^-的溶液：Na ⁺、K ⁺、NO ₃ ^-、CO ₃ ^2-
D．含有大量NO ₃ ^-的溶液：H ⁺、SiO ₃ ^2-、SO ₄ ^2-、Cl ^-

参考答案：

提问用户：1i***bec

可能感兴趣的题目：

1 阅读理解。 Forty-three years seems like a long time to remember the name of a mere acquaintance. I have forgotten the name of the old lady, who was a customer on the paper route in my hometown when I was a twelve-year- old boy. Yet it exists in my memory that she taught me a lesson in forgiveness which I shall never forget. On a winter afternoon, a friend and I were throwing stones onto the roof of the old lady"s house. The object of our play was to observe how the stones changed to missiles as they rolled to the edge of the roof. I found myself a perfectly smooth rock and threw it out. The stone was too smooth, however, so it slipped from my hand as I let it go and headed straight not for the roof but for a small window on the old lady"s back porch. At the sound of crashed glass, we knew we were in trouble and ran away. I was too scared about getting caught that first night to be concerned about the old lady with the broken window in winter. However, a few days later, when I was sure that I hadn"t been discovered, I started to feel guilty for her misfortune. She still greeted me with a smile each day when I gave her the paper, but I was no longer able to act comfortable in her presence. I made up my mind that I would save my paper delivery money, and in three weeks I had the seven dollars to cover the cost of her window. I put the money in an envelope with a note explaining that I was sorry for breaking her window and hoped that the seven dollars would cover the cost for repairing it. I waited until it was dark, snuck up to the old lady"s house, and put the letter I didn"t sign through the letter slot in her door. Once again, I could have the freedom of looking straight into the old lady"s kind eyes. The next day, I handed the old lady her paper and was able to return the warm smile that I was receiving from her. She thanked me for the paper and gave me a bag of cookies she had made herself. Reaching for the cookies, I felt an envelope and pulled it out of the bag. When I opened the envelope, I was surprised. Inside were the seven dollars and a short note that said, "I"m proud of you!" 1. Which of the following sentences is NOT true according to the passage? A. The author was a newsboy when he was 12 years old. B. The old lady didn"t know who broke the window. C. The author felt guilty of breaking the old lady"s window. D. The story happened forty-three years ago. 2. The underlined words "snuck up" in the fifth paragraph probably means "_____". A. went quietly B. quickly made my way C. stole something of no value D. searched in a secret way 3. Which of the following would be the best title for the passage? A. A Bag of Cookies B. A Broken Window C. The Secret in the Cookies D. A Painful Lesson 4. _____ probably impressed the author of the passage most. A. The cookies made by the lady B. The note inside the cookie bag C. The broken window D. The lady"s forgiveness
2 下列有关声现象的说法中，正确的是 A.在街头设置噪声监测仪，属于在传播过程中减弱噪声 B.只要物体在振动，我们就一定能听到声音 C.声音在传播过程中音调会降低 D.声波能传递信息，也能传递能量
3 我国南北跨近50度，这就造成了 A.同一座山不同景观 B.同一季节不同衣着 C.同一时期不同景象 D.同处平原不同耕作
4 已知平面向量 a ， b ，且满足 | a |=1，| a + b |=2，则 | b |的取值范围______．
5 All the people were shocked by what the little girl when she was cheated and sold to the mountain village. A．went over B．went through C．got along with D．got away
6 如图程序中，输出时A的值是输入时A的值的______倍．
7 It was in the remote mountain areas I spent the gap year I learned how to work with a group of strangers and how to look after myself. A．where; that B．when; that C．where; when D．that; where
8 滑块沿光滑斜面从顶端向底端做匀加速直线运动，运动到斜面的中点时与运动到底端时所用的时间比值为（） A． B． C． D．
9 北京时间2005年7月4日下午，美国探测器成功撞击“坦普尔一号”彗星，并投入彗星的怀抱，实现了人类历史上第一次对彗星的“大碰撞”，如图所示．设“坦普尔一号”彗星绕太阳运行的轨道是一椭圆，其运行周期为5.74年，则下列说法中正确的是（） A．探测器的最小发射速度为7.9km/s B．“坦普尔一号”彗星运动至近日点处的加速度大于远日点处的加速度 C．“坦普尔一号”彗星运动至近日点处的线速度小于远日点处的线速度 D．探测器运行的周期小于5.74年
10 读下列我国四种经济作物分布图，图例①②③④代表的四种经济作物依次是（） A．大豆、甘蔗、油菜、棉花 B．棉花、大豆、油菜、甘蔗 C．油菜、甘蔗、棉花、大豆 D．大豆、油菜、棉花、甘蔗