有一种棕黑色的固体铁化合物A，与盐酸作用生成浅绿色溶液B，同时放出臭味气体C，将C通入CuSO4溶液生成棕黑色沉淀D，将Cl2通入B中得到黄色溶液E，向E中加入KSCN试液得血红色液体F，向F中加入NaF固体生成无色液体G。试指出A.B.C.D.E.F.G各位何物，并写出有关的反应方程式。
TEOS is mainly used as a crosslinking agent in silicone polymers and as a precursor to silicon dioxide (SiO2) in the semiconductor industry and is also used as the silica source for the synthesis of some zeolites. When properly hydrolyzed, ethyl silicate produces very fine particles of silica,...
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In a pure form, it has a crystalline structure and takes the 14th place on the periodic table, where it is written as Si. Silicon appears more commonly in the form of a compound such as silica (SiO2), where it is combined with oxygen, that usually takes the form of sand. Compounds ...
Stoichiometry in chemistry pertains to the study of the relationship between the reactants and products involved in a chemical reaction. It is used in determining the limiting and excess reactants to predic the theoretical yield. Answer and Explanation: ...
Yahoo Answers is usually the worst place in the universe to get an answer to anything, but the replies to the original question told me that to isolate phosphorus from Ca3(PO4)2 requires the addition of 6SiO2. Which leads me to believe that the original equation, Ca3(PO4)2+ 10C, may...
a使用纯度高,SiO2含量低的广西石灰石 The use purity is high, SiO2 content low Guangxi limestone [translate] a某 些化 学装置、用燃料驱动的模型车辆和火箭。这些玩具包含有可能是有害的化学品,一般不能被不会阅读和理解说明及警告的儿童安全地玩耍。建议使用任何这类产品的最低年龄应为8岁 并且 仅在成人...
Information about the nature of the low-temperature anomalies and in particular the properties of the tunneling systems in silica and lithium silica glasse... J Reinisch,A Heuer - 《Journal of Physical Chemistry B》 被引量: 9发表: 2006年 What Is Moving in Silica at 1 K? A Computer Study...
and 9Be is the only stable nuclide of beryllium. Beryllium ore has more than 30 kinds, beryl (3BeO - AlO3 - 6SiO2), phenacite (2BeO - SiO2), Chrysoberyl (BeO - Al2O3) have economic value, there is the most rich resource beryllium in the United State. As the first member of ...
However, it is also known that a particular metal/oxide interface with similar lattice mismatch has two or more ORs, in which the lattice mismatch alone is insufficient to explain the formation of the ORs. Previous calculations show that the ORs between metal film and oxide substrate are ...