Sulfur dioxide(二氧化硫)is an important compound in its own right。It is used in the manufacture of paper。When made from wood pulp or from other materials,paper is usually pale yellow in colour。 Sulfur dioxide is used to bleach(漂白)it to the white colour which is needed。Sulfur dioxide ...
Sulfur potassium C. Potassium sulfur D. Sulfide potassium 相关知识点: 试题来源: 解析 A。解析:钾(potassium)为金属元素,硫(sulfur)为非金属元素。英文命名时金属在前,非金属在后且硫改为 -ide形式即sulfide,所以是Potassium sulfide。B选项顺序错误,C和D选项不符合命名规则。反馈 收藏 ...
Inhibition of popcorn polymer growth by treatment with a sulfur-containing compound. The sulfur-containing compound can be added to organic material from which popcorn polymer is formed, or applied to extant popcorn polymer.SAN SHANNNINサン,シャン-ニン...
The actual concentration need not be large for a substance to be a pollutant; in fact the numerical value tells us little until we know how much of an increase this represents over the concentration that would occur naturally in the area. For example, sulfur dioxide has detectable health ...
A useful definition of an air pollutant is a compound added directly or indirectly by humans to the atmospherein such quantities as to affect humans, animals, vegetation, or material adversely(有害地). Air pollution requiresa very flexible definition that permits continuous change. When the first...
carbon acid carbon and sulfur com carbon and water carbon chloride carbon county montana carbon county wy carbon dioxide coolan carbon equilibrium di carbon fertilization carbon fiber carbon fiber plain carbon fiber reinforc carbon film resistor carbon intensity targ carbon leakage carbon micrographs of ...
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symbolfor each element in the compound, and the number of atoms for that element if there's more than one. For instance, the chemical formula for sulfuric acid is H2SO4, which means the compound is made up of two hydrogen (H) atoms, one sulfur (S) atom, and four oxygen (O) atoms...
百度试题 结果1 题目10 A compound has the formul a XF2 and has a relative mass of 70 C What is element X? A gallium B germanium C sulfur D ytterbium 相关知识点: 试题来源: 解析 C 反馈 收藏
Since the discovery of Os2AP as the gene regulating the accumulation of 2-acetyl-1pyrroline (2AP), the major aromatic compound in rice, cereals, pandan, br... A. Vanavichit,Siwared Areekit,Anucha Plabpla,... 被引量: 0发表: 2008年 Conversion of heavy gasoil into ultra-low sulfur an...