Sustainable development and sustainable forestry:analogies, differences, and the role of flexibility RID B-2617-2009 喜欢 0 阅读量: 36 作者:Hahn,WA,Knoke 摘要: Various approaches have been developed to achieve sustainability in forestry, under changing social needs and, consequently, changing ...
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ChemicalBook 致力于为化学行业用户提供4-methoxy-5H-pyrimido[4,5-b][1,4]thiazin-6(7H)-one的性质、化学式、分子式、比重、密度,同时也包括4-methoxy-5H-pyrimido[4,5-b][1,4]thiazin-6(7H)-one的沸点、熔点、MSDS、用途、作用、毒性、价格、生产厂家、用途、上游原料、下
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英文别名: 4-methoxy-5H-pyrimido[4,5-b][1,4]thiazin-6(7H)-one中文名: 中文别名: CBNumber: CB51526179 分子式: C7H7N3O2S 分子量: 197.21438 MOL File: Mol file 化学性质 安全信息 用途 供应商 2 4-methoxy-5H-pyrimido[4,5-b][1,4]thiazin-6(7H)-one化学性质 ...
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9.从薄荷油中得到一种烃A.与A相关反应如图:已知:(1)H的分子式为C10H20.(2)B所含官能团的名称为羰基.羧基.(3)含两个-COOCH3基团的C的同分异构体共有4种.其中核磁共振氢谱呈现2个吸收峰的异构体结构简式为.(4)D→E的反应类型为取代反应.(5)G为含六元环的化合物.写出其结
根据热化学方程式:S(s)+O2(g)=SO2(g);△H=-297.23kJ/mol。分析下列说法正确的是 A.S(g)+O2(g)=SO2(g);△H=-Q。Q的值不小于297.23 B.S(g)+O2(g)=SO2(g);△H=-Q。Q的值不大于297.23 C.1molSO2的总能量小于1molS和1molO2能量总和 D.1molSO2的总能量大于1molS和1molO2能量总和 查看答案...