国外化学方程式的书写
国外AP无机化学方程式常考总结
忽视英文写出下列反应的方程式,能写离子方程式的尽量写离子方程式。
1. A solution of ammonia is added to a dilute solution of acetic acid(醋酸).
2.Solutions of sodium hydroxide and acetic acid are mixed.
3.Hydrogen sulfide gas is bubbled through excess potassium hydroxide solution.
4.Write the successive(连续的)ionization equations for H2S.
5.Solid barium oxide is added to distilled water
爱丽丝梦游仙境3d
英语翻译器在线6. Solid calcium oxide is expod to a stream of carbon dioxide gas.英语 软件
7. Solid dinitrogen pentoxide is added to water.
8. Carbon disulfide vapor is burned in excess oxygen to give two kinds of oxides.
奇伟9.Lithium metal is burned in air.
10.Excess concentrated sodium hydroxide solution is added to solid aluminum hydroxide.
11. Solid ammonium carbonate is heated.
12. A solution of hydrogen peroxide(过氧化氢) is catalytically decompod.
13. A solution of potassium chloride is electrolyzed.
14.A solution of ammonium sulfate is added to a saturated solution of barium hydroxide.
15.A solution of copper(II) chloride is added to a solution of sodium sulfide.
16. Solutions of mangane(II) sulfate and ammonium sulfide are mixed.
17. Chlorine gas is bubbled into a cold, dilute solution of
potassium hydroxide.
18. Chlorine gas is bubbled into a cold, dilute solution of potassium hydroxide.
2010国家线>interesting怎么读19. A strip of copper is immerd in a concentrated nitric acid solution.
四级答案202120. Hydrogen gas is pasd over hot iron(II) oxide powder.
21. Acidified(酸化)potassium permanganate is added to a solution of sodium nitrite. (hints:under acidic solution ,MnO4-can be reduced into Mn2+;NO3-can be oxidized into NO3-).
22. A solution of sodium bromide is added to an acidified solution of potassium bromate.
23.Aluminum metal is added to a solution of copper(II) chloride.
care是什么意思24. Excess chlorine gas is pasd over hot iron filings.
25. Magnesium metal is added to nitrogen gas.
26. Solid lithium hydride is added to distilled water.(LiH中H的氧化数为-1,很容易升高)
27. Solid lithium oxide is added to excess water.
28.Solid potassium chlorate is heated in the prence of mangane dioxide as a catalyst.
29. Dilute hydrochloric acid is added to a solution of potassium sulfite.右旋安非他明
30. A solution of sulfuric acid is added to a solution of barium hydroxide until the same number of moles of each compound has been added.
31.Sulfur dioxide gas is pasd over solid calcium oxide.
32. A solution of potassium iodide is added to an acidified solution of potassium dichromate(Cr2O72-). (hints:under acidic solution , Cr2O72-can be reduced into Cr3+;I-can be oxidized into I2).