求高中化学中各种常见物质颜色(包括有机),一些物质火焰颜色(如K焰色反应中淡紫色)还有一些有机物密度

2025-03-02 12:03:10
推荐回答(3个)
回答(1):

燃烧的
1、氢气在空气中燃烧—-淡蓝色火焰

  2、氢气在氯气中燃烧---苍白色火焰,瓶口有白雾。

  3、甲烷在空气中燃烧---淡蓝色火焰

  4、酒精在空气中燃烧---淡蓝色火焰

  5、硫在空气中燃烧---微弱的淡蓝色火焰,生成强烈剌激性气味的气体。

  6、硫在纯氧中燃烧---明亮的蓝紫色火焰,生成强烈剌激性气味的气体

  7、硫化氢在空气中燃烧---淡蓝色火焰,生成强烈剌激性气味的气体。

  8、一氧化碳在空气中燃烧---蓝色火焰

  9、磷在空气中燃烧,白色火焰,有浓厚的白烟

  10、乙烯在空气中燃烧,火焰明亮,有黑烟

  11、乙炔在空气中燃烧,火焰很亮,有浓厚黑烟

  12、镁在空气中燃烧,发出耀眼白光

  13、钠在空气中燃烧,火焰黄色

  14、铁在氧气中燃烧,火星四射,(没有火焰)生成的四氧化三铁熔融而滴下。

2012高考化学复习:某些有色物的颜色
  1.红色:铜、Cu2O、品红溶液、酚酞在碱性溶液中、石蕊在酸性溶液中、液溴(深棕红)、红磷(暗红)、苯酚被空气氧化、Fe2O3、(FeSCN)2+(血红)
  2.橙色:溴水及溴的有机溶液(视溶液浓度不同,颜色由黄——橙)
  3.黄色:(1)淡黄色:硫单质、过氧化钠、溴化银、TNT、实验制得的不纯硝基苯、
  (2)黄色:碘化银、黄铁矿(FeS2)、工业盐酸(含Fe3+)、久置的浓硝酸(含NO2)
  (3)棕黄:FeCl3溶液、碘水(黄棕→褐色)
  4.棕色:固体FeCl3、CuCl2(铜与氯气生成棕色烟)、NO2气(红棕)、溴蒸气(红棕)
  5.褐色:碘酒、氢氧化铁(红褐色)、刚制得的溴苯(溶有Br2)
  6.绿色:氯化铜溶液(蓝绿色)、碱式碳酸铜(俗称铜绿)、硫酸亚铁溶液或绿矾晶体(浅绿)、氯气或氯水(黄绿色)
  7.蓝色:胆矾、氢氧化铜沉淀、淀粉遇碘、石蕊遇碱性溶液、硫酸铜溶液
  8.紫色:高锰酸钾溶液(紫红)、碘(紫黑)、碘的四氯化碳溶液(紫红)、碘蒸气

回答(2):

化学常见物质的颜色

(一)、固体的颜色
1、红色固体:Cu,Fe2O3
2、绿色固体:Cu2(OH)2CO3
3、蓝色固体:Cu(OH)2,CuSO4
4、紫黑色固体:KMnO4
5、淡黄色固体:S
6、无色固体:H2O,CO2,金刚石
7、银白色固体:Ag,Fe,Mg,Al,Hg等金属
8、黑色固体:铁粉,木炭,CuO,MnO2,Fe(OH)2,Fe3O4,(碳黑,活性炭),Fe2S3,CuS,Cu2S
9、红褐色固体:Fe(OH)3
10、白色固体:NaCl,Na2CO3,NaHCO3,Ga(OH)2,GaO,CuSO4,P2O5,MgO
11、黄绿色固体:FeS

(二)、液体的颜色
11、无色液体:水,双氧水
12、蓝色溶液:CuSO4溶液,CuCl2溶液,Cu(NO3)2溶液
13、浅绿色溶液:FeSO4溶液,FeCl2溶液,FeNO2溶液
14、黄色溶液:Fe2(SO4)3溶液,FeCl3溶液,FeNO3溶液
15、紫红色溶液:KMnO4溶液
16、紫色溶液:石蕊溶液

(三)、气体的颜色
17、红棕色气体:NO2
18、黄绿色气体:Cl2
19、无色气体:O2,N2,H2,CO2,CO,SO2,HCl气体等大多数气体。

溶 解 性 口 诀
K、Na、铵盐、硝酸盐,都能溶在水中间;
氯化物不溶是银盐,硫酸盐不溶是钡盐;
碳酸盐只溶钾、钠、铵,钾、钠、铵、钡四碱溶;
还有四种微溶物:Ca(OH)2 、CaSO4 、Ag2SO4 、 MgCO3。

回答(3):

我用的是手机,给你传过去照片行不行?

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