解析 DThe only correct answer is DA is not correct because sodium is an elementnot a mixtureB is not correct because chlorine is an elementnot a mixtureC is not correct because sodium chloride is apure compound not a mixture 反馈 收藏 ...
Element number 17 in the periodic table, chlorine is one of a group of elements that share similar chemical properties known as the halogens, with the other members being fluorine, bromine, iodine and astatine. The gas dissolves in water, forming a mixture of hypochlorous and hydrochloric acids...
Element number 17 in the periodic table, chlorine is one of a group of elements that share similar chemical properties known as the halogens, with the other members being fluorine, bromine, iodine and astatine. The gas dissolves in water, forming a mixture of hypochlorous and hydrochloric acids...
chlorine containing polymerisat mixturePURPOSE:A halogen-containing resin composition with improved lubricity and thermal stability, prepared by adding an ester obtained from a specified fatty acid and a 2-6C polyvalent alcohol to the resin and mixing.ISA, HIROSHI, YACHIYO, CHIBA, JP...
It is known that chlorine may be obtained c from suitable ferric salts by admixing there- f with a chloride of an alkali or alkaline earth I metal, such as sodium, calcium, magnesium or 1 other chloride, and heating the mixture in a current of air or oxygen. It is necessary that the...
aerror occurred in the scanner 错误在扫描器生成了 [translate] a以HPMC为主要材料,研制水溶性骨架型双氯芬酸钠缓释片 Take HPMC as the main material, the development water-soluble skeleton double chlorine fragrance sour sodium slow release piece [translate] alife should not only be lived 应该不仅...
N-Chlorosuccinimide is a white monoclinic crystal with a chlorine odor. It is slightly soluble in ether, chloroform, and carbon tetrachloride. Uses It is used as a chlorinating agent and mild oxidizing agent in organic synthesis. It is also a reagent in the Corey-Kim oxidation reaction. ...
chlorine is important in the water for achieving sufficient disinfection. This can be ensured with the help of break point chlorination technique. During the treatment ofCryptosporidiumoocysts, chlorine and monochloramine have been found to be ineffective. However, ozone at a concentration of about 2...
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An equilibrium mixture is prepared in a container of fixed volume.CO(g)+Cl_2(g)⇌COCl_2(g) △H=-108kJ/mol^(-1)The temperature of this mixture is decreased and the mixture is allowed to reach a new equilibrium.Which is greater for the new equilibrium than for the original ...