您所在的当前位置：高中化学试题 >

与量有关的离子方程式的书写

> 下列离子方程式正确的是 A．NaHCO3溶液中加入少量的石灰水 HCO3－+ Ca2+ + OH－＝CaCO3↓＋H2O B．向氯化铁溶液中通入硫化氢气体 3Fe3+ + H2S = 2Fe2+ + FeS↓＋2H+ C．氯化铝溶液中加入过量氨水 Al3+ + 4 OH－＝ AlO2－+ 2H2O D．氨水中通入过量SO2 NH3·H2O+ SO2 = HSO3－ + NH4+

问题：

发布时间：2024-09-11

下列离子方程式正确的是

A．NaHCO₃溶液中加入少量的石灰水 HCO₃^－+ Ca²⁺ + OH^－＝CaCO₃↓＋H₂O

B．向氯化铁溶液中通入硫化氢气体 3Fe³⁺ + H₂S = 2Fe²⁺ + FeS↓＋2H⁺

C．氯化铝溶液中加入过量氨水 Al³⁺ + 4 OH^－＝ AlO₂^－+ 2H₂O

D．氨水中通入过量SO₂ NH₃·H₂O+ SO₂ = HSO₃^－ + NH₄⁺

参考答案：

提问用户：67***r3D

可能感兴趣的题目：

1 如图所示，在竖直放置的铅屏A的右表面上贴着能放射电子的仪器P，放射源放出的电子速度大小均为，方向在各个方向均有。足够大的荧光屏M与铅屏A平行放置，相距，其间有水平向左的匀强电场，电场强度大小。已知电子电量，电子质量取。求:（1）电子到达荧光屏M上的动能；（2）荧光屏上的发光面积。
2 关于如图描述运动的图象，正确的说法是（　　） A．图象A描述的是一个物体做匀速直线运动 B．图象B描述的是一个物体做匀加速直线运动 C．图象C描述可能的是一个物体沿斜面向上滑动，达到最高点后又向下滑动 D．图象D描述的可能是一个物体做竖直上抛运动（取初速度的方向为正）
3 下列不属于现代运输方式的是 A.风帆造船 B.管道运输 C.公路运输 D.航空运输
4 ________him that she would fail as she was so able and worked so hard. A．It never occurred to B．That never occurred to C．It never occurred with D．That never occurred for
5 阅读理解。 Aquatic Adventures! Help Us Get Ready for Showtime! Trainer Program What does it take to work with seals or sea lions? Find out with Atlantis Marine World"s Trainer Program and go behind the scenes with our Marine Mammal staff and: ﹒Learn how we train our animals and help train our sea lions to learn how to paint ﹒Go into the seal exhibit with trainers ﹒Join in a seal training period - and get to pet and feed one of our harbor seals ﹒Help prepare food for seals ﹒Attend our Sea Lion Show ﹒Get a kiss from sea lion, Java - and take home a photo Summer Adventure Days - Camp! Atlantis Style! Our camp program adds interactive excitement to your child"s summer vacation. Children ages 3 to 14 discover the wonders of the sea environment through age - appropriate activities. Pirate Snorkel Adventure Yo-ho-ho, this is a whole lot of fun! Join us this summer for our interactive Pirate Snorkel Adventure and help Captain Poseidon locate missing treasure. While searching our lake, don"t miss tropical fish from all around the world. When you"re done, you"ll walk away with some booty (战利品) of your own-a ＄2.00 game card and a pirate eye patch (海盗眼罩) featuring our very own Jolly Poseidon! Smooth Sailing: Taste Long Island Wine Cruise Now Accepting Reservations! Experience the magic of Taste Long Island, a Saturday evening wine and cheese cruise aboard the Atlantis Explorer Tour Boat. Featuring local wines, this adventure along the Peconic River is a relaxing way to enjoy both beautiful scenery and fine wines. Guests 21 and older only. Members and Green Key Cardholders enjoy 25％ off. 1. If you attend Atlantis Marine World"s Trainer Program, you can _____. A. watch the performance of sea lions. B. learn how to paint sea lions. C. get a chance to kiss sea lions. D. help prepare a seal exhibit. 2. The activities in Summer Adventure Days are divided according to _______. A. children"s hobby. B. children"s age. C. the price. D. the type of sea animals 3. In which activity will you get something as a reward? A. Atlantis Marine World"s Trainer Program. B. Summer Adventure Days. C. Pirate Snorkel Adventure. D. Smooth Sailing. 4. What is special about Smooth Sailing? A. Guests under 21 cannot be accepted. B. It provides famous wines from all over the world. C. Guests usually get a discount. D. It doesn"t accept bookings.
6 北京时间2010年8月1日5时30分，中国在西昌卫星发射中心用“长征三号甲”运载火箭，将第五颗北斗导航卫星成功送入太空预定轨道．这标志着卫星导航市场的垄断局面被打破，北斗卫星导航系统将免费提供定位、测速和授时服务，定位精度10m，测速精度0.2m/s，以下说法不正确的是（　　） A．北斗导航卫星定位提供的是被测物体的位置 B．北斗导航卫星授时服务提供的是时刻 C．北斗导航卫星测速服务提供的是运动物体的速率 D．以上说法都不对
7 如图所示，在光滑绝缘的水平面上的A处固定某电荷，在B点有一个以初速度V0向右运动的点电荷，已知该点电荷在运动过程中电势能不断减小，其运动速度图线是下图中的哪一个？（　　） A． B． C． D．
8 What a table! I have never seen such a thing before. It is ______ it is long. A．half not as wide as B．wide not as half as C．not half as wide as D．as wide as not half
9 阅读理解。 Bugs Bunny"s Hoping Carrot Hunt In this game you are Bugs Bunny. and your goal is to reach the finish line. A carrot truck has spilled its cargo! Gather as many carrots as you can, and when you get the big carrot, you"ll be able to jump even higher! Instructions: Use the mouse to move Bugs left and right, and click to jump a gap while gathering carrots. Category: Action Mushroom Madness You are in charge of protecting several farms. It"s up to you to make sure the mushrooms there reach maturity before the animals in the forest get their hands on them. Use your swatter (苍蝇拍) to fight off anything that comes near them; use heavier weapons if necessary. Instructions: Slap any creature that comes near your mushrooms. Use the mouse to control the swatter. If you see a "power up", click to use it. Collect coins to buy upgrades after each level. Category: Action Rudolph" s Kick and Fly Santa"s little helpers have worked all year preparing for Christmas. When Santa finally leaves to deliver his presents, the elves (精灵) head down to the snowfields with Rudolph, the reindeer, to play their favorite game: Kick and Fly! Instructions: 1.Use the mouse to aim, and click to launch an fly. 2.While in the air, click again to catch, and to gain extra height. 3.The goal is to collect as many Christmas ornaments (装饰物) possible, and get 10 points for each one. Tips: If you"re heading towards an obstacle, be sure to avoid it! Category: Action Click Flick Your mission is to save chicks falling from the sky. Use your trampoline (蹦床) to bounce them up and direct them into a nest. But hurry-if you don"t, many chicks will fall and lose their lives. There will be falling bombs, worms, nuts and eggs and you can get extra points by collecting the worms and nuts. Save the amount of chicks shown to unlock the next level! Instructions: Move the chicks left and right using keys or the mouse. Category: Adventure 1. The main purpose of the passage is to _____. A. tell us different categories of games B. ask us to decide which game is the best C. introduce several interesting computer games D. let us evaluate whether we are interested in the games 2. If a player has collected some worms and nuts, he _____. A. is playing Mushroom Madness B. will lose the game quite soon C. will get 10 points for each one D. will get extra points and get ahead 3. In which game are there obstacles you must avoid? A. Bugs Bunny"s Hopping Carrot Hunt. B. Mushroom Madness. C. Rudolph"s Kick and Fly. D. Click Flick.
10 Mr. White gets up early and runs every day, which he thinks is____ to his health. A．benefit B．beneficially C．benefits D．beneficial