它完全燃烧后的产物是 CO2 和 H2O D. 用该塑料代替传统塑料能防止“白色污染” 相关知识点: 试题来源: 解析 解: A、它是一种有机合成高分子材料,正确. B、由化学式 (C4H4O2)n 可知其相对分子质量很大,是高分子化合物.错误. C、由化学式知由C、H、O三种元素组成,根据燃烧的特征可知燃烧生成物是...
Examples C17H25COH CO2HCOC2H5 C12H9O3P Ni(N) (FeCl2)6H2O Ca3Y7BO4(SiO4)5O C47H94O2 NCCN NH(NO) CaFe2O4*CaSO4 AlH(SO3)2 PB(PO4)4 Recently Calculated Molar Masses
For example, C6H5C2H5 + O2 = C6H5OH + CO2 + H2O will not be balanced, but XC2H5 + O2 = XOH + CO2 + H2O will. Compound states [like (s) (aq) or (g)] are not required. You can use parenthesis () or brackets []. How To Balance Equations Balance any...
合成并测定了一种新的三维超分子体系——[Cd(C6H4O2N)2(H2O)4]的晶体结构.该晶体属于三斜晶系,Pi空间群,a=6.4461(13),b=6.9332(14),c=9.4411(19)A,α=94.75(3)°,β=104.70(3)°,γ=112.08(3)°,V=370.63(13)A^3,μ=1.518mm^-1,Z=1,M=428.67,Dc=1.921g/cm^3,F(000)=214,λ(MOKα...
Crystalline Na2[Be(o-C6H4O2)2] · 5 H2O was prepared from beryllium hydroxide and a strongly alkaline aqueous solution of catechol. In an X–ray structure determination the complex was shown to feature dianions [Be(o-C6H4O2)2]2- with two chelating catechol ligands. The 9Be–NMR spectrum...
5.在我国以汽油为燃料的轿车正在快速进入家庭,汽油的主要成分是己烷(C6H4),它燃烧时的化学反应为:2C6H4+19O2点燃12CO2+14H2O,某种品牌轿车正常行驶100km需燃油12L(质量为8.6kg)。请通过计算回答:该轿车正常行驶100km会产生多少千克的二氧化碳?(提示:汽油中的成分都以己烷计算) ...
中文名: 2 X H2O,0.5MG/L C SUCROSE,0.5MG/L C,C6H4O2,0.25MG/L C NIST SUCROSE/鉴别检查用 中文别名: 2 X H2O,0.5MG/L C SUCROSE,0.5MG/L C,C6H4O2,0.25MG/L C NIST SUCROSE/鉴别检查用 CBNumber: CB314928858 分子式: 分子量: 0 MOL File: Mol file 化学...
Single-Molecule Magnets: Preparation and Properties of Mixed-Carboxylate Complexes [Mn12O12(O2CR)8(O2CR')8(H2O)4] Methods are reported for the preparation of mixed-carboxylate versions of the [Mn12O12(O2CR)16(H2O)4] family of single-molecule magnets (SMMs). [Mn12O12(O2... M ...
问题:下列化合物中酸性最强的是()。选项: A. H2O B. CH3CH2OH C. p-O2NC6H4OH D. p-CH3C6H4OH
下列化合物中酸性最强的是( ) A. CH3CCH B. H2O C. CH3CH2OH D. p—O2NC6H4OH E. C6H5OH F. p—CH3C6