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，能在溶液中大量共存的是（　　） A．H+、Ca2+、Cl-、CO32- B．I-、MnO4-、K+、H+ C．Na+、Fe2+、SO42-、OH- D．Na+、Cu2+、Cl-、SO42-

问题：

发布时间：2024-09-13

下列各组离子中，能在溶液中大量共存的是（　　）

A．H⁺、Ca²⁺、Cl^-、CO₃^2- B．I^-、MnO₄^-、K⁺、H⁺

C．Na⁺、Fe²⁺、SO₄^2-、OH^- D．Na⁺、Cu²⁺、Cl^-、SO₄^2-

参考答案：

提问用户：ad***8Of

可能感兴趣的题目：

1 神农顶景区位于神农架西南部，是国家级自然保护区，是4A级重点风景名胜景区．该旅游区是以人与自然和谐共存为主题的自然生态旅游区．区内华中第一峰神农顶海拔3105.4米，箭竹林遮天蔽日，高山石林突兀阴森，更有众多珍禽猛兽出没其间，给这一方天空披上浓厚的神秘之纱．以上文字、图片介绍了神农顶景区，有“华中第一峰”之称的神农顶 A.武陵源风景区 B.神农架风景区 C.武当山风景区 D.洞庭湖风景区
2 下列气体通入蒸馏水中，可生成两种酸的是 A．Cl2 B．CO2 C．SO2 D．NH3
3 一质点从静止开始做匀加速直线运动，第2 s内通过的位移是3 m，则( ) A．第2 s内的平均速度是1.5 m/s B．物体的加速度是2 m/s2 C．前3 s内的位移是6 m D．3 s末的速度是6 m/s
4 阅读理解。 Jonathan James looks like just another kid about to graduatefrom high school. But this 19-year-old Swede is anything but ordinary from the computer in his parents" home, he helps the US Federal Bureau of Investigation (FBI) find out the world"s most wanted cybercriminals. Jonathan first made headlines when he and another Swede, Fredrik Bjoerck, found out the maker of the " Melissa" Virus in March, 1999. He went to the aid of the FBI again on May 7 , findingout the suspected sender of the dangerous" I LOVE YOU" virus. The suspect was caught in Manila on May 8. Jonathan"s special skills are in hot demand as officials around the world express alarm at the" virtual" crime. In studying for finalexams, hanging out with his friends and refereeing his younger brother"s football matches, the quiet, gentle teenager also gives les-sons on e-security(电子安全) to large companies. He reads a lot and exchanges information with other computer experts to know much about the latest tricks of the hacker trade. Many companies have already tried to employ him, but he is not interested at the moment. Instead, he plans to begin law school in the autumn at Sweden"s Uppsala University and start up his owne-security company. Ahhough he works with the FBI now and then, his family insists he"s just" a regular kid". "Jonathan is a great kid. He has his friends and he does a lot more than just play with the Computer,"his little sister Tessa said, adding that he helps the FBI because" he likes to help" not because he"s looking for fame or recognition. When the world was hit by the" Love Bug" virus, Jonathan was too busy preparing a speech on security to look into the problem. "Finally on May 7 , I had some free time, so I began looking. "Within a few hours, he found the suspect and e-mailed his methods and resuits to the FBI. He said his work on the " Melissa" virus, which took three weeks to solve, was a big help in finding the suspect so quickly. "This time I knew exactly where to start, what to disregard and what to look at. " 1. The underlined word" cybercriminals" in the first paragraph most probably means __ . A. persons who commit a crime in the network B. softwares for smoothing away the poison C. persons who create the network D. designers for the Internet systems 2. The public started to know something about Jonathan just from_______. A. his helping the FBI to find out the sender of the dangerous" I LOVE YOU" virus B. his work together with Fredrik Bjoerck to find out the maker of the" Melissa" virus C. his little sister"s talk about his good qualities as a regular kid and good programmer D. his speech on e-security to many computer companies after his fight against hackers 3. What do we know about Jonathan? A. He is a good fame hunter with various abilities. B. He is such a brave fighter that any criminal will feel afraid. C. He is an expert on e-security, not interested in running a company. D. He is a regular kid but does something unusual. 4. The passage mainly wants to tell us that _ . A. a Swedish kid helps the FBI find out the most wanted cyber criminals B. Jonathan is really a quiet, gentle and ordinary boy C. many companies want the young computer expert to join them D. all cybercriminals will surely be found out wherever they are
5 Look!What a________you have made of your dress playing in that dirt! [ ] A. trouble B. design C. style D. mess
6 已知角α的终边经过点P（4，-3），则sinα+cosα的值是（　　） A． 1 5 B．- 1 5 C． 7 5 D．- 7 5
7 读某城市部分地区经过数字化处理的“交通线、功能分区、地价”图，完成下列各题。小题1:若布局合理，则该城市盛行风向最不可能为 A．东风 B．西南风 C．西北风 D．东北风小题2:若在该区域新建物流中心，最宜选择在 A．甲 B．乙 C．丙 D．丁
8 珠江三角洲位于我国的 A.广东省 B.福建省 C.云南省 D.浙江省
9 对下列实验现象的解释不正确的是选项实验现象解释 A C12使鲜艳的红色花瓣褪色 Cl2具有强还原性 B NH3与HCl气体接触时有白烟产生 NH3与HCl反应生成固体小颗粒 C 新切开的Na表面在空气中很快变暗 Na容易与空气中的氧气等反应 D 氯化铝溶液中滴入过量的氢氧化钠溶液，白色沉淀溶解氢氧化铝具有两性
10 在距地面高为h，同时以相等初速V 0分别平抛，竖直上抛，竖直下抛一质量相等的物体m，当它们从抛出到落地时，比较它们的动量的增量△P，有（） A．平抛过程较大 B．竖直上抛过程较大 C．竖直下抛过程较大 D．三者一样大

下列各组离子中，能在溶液中大量共存的是（ ） A．H+、Ca2+、Cl-、CO32- B．I-、MnO4-、K+、H+ C．Na+、Fe2+、SO42-、OH- D．Na+、Cu2+、Cl-、SO42-

可能感兴趣的题目：

下列各组离子中，能在溶液中大量共存的是（　　）

A．H⁺、Ca²⁺、Cl^-、CO₃^2- B．I^-、MnO₄^-、K⁺、H⁺

C．Na⁺、Fe²⁺、SO₄^2-、OH^- D．Na⁺、Cu²⁺、Cl^-、SO₄^2-