脲的化学结构式图
10月2日，辽宁营口
\n一位83岁的老人
\n随手在纸上快速写出
\n苯甲酸钠的化学结构式在网上走红
\n外孙马先生称
\n自己吃饭时说
\n不少酱油里都含有苯甲酸钠
\n姥姥立刻拿出纸笔
\n写出苯甲酸钠结构式
\n自己感到特别惊讶
\n这么大年龄还能记住
\n
马先生称
\n姥姥毕业于辽宁师范
\n网友纷纷表示
\n这位姥姥可太厉害了
\n\n
也有人感叹
\n早把当初学的还回去了
\n\n
也有网友晒出
\n自己家里的老学霸
\n
\n
（辽沈晚报综合）
","force_purephv":"0","gnid":"997652d6d106f5e70","img_data":[{"flag":2,"img":[{"desc":"","height":"480","s_url":"https://p0.ssl.img.360kuai.com/t01c1cfc835e60b7631_1.gif","title":"","url":"https://p0.ssl.img.360kuai.com/t01c1cfc835e60b7631.gif","width":"386"},{"desc":"","height":"470","title":"","url":"https://p0.ssl.img.360kuai.com/t01dc3cbd2a926663f2.jpg","width":"1080"},{"desc":"","height":"222","title":"","url":"https://p0.ssl.img.360kuai.com/t019893e6061cac848b.jpg","width":"1080"},{"desc":"","height":"277","title":"","url":"https://p0.ssl.img.360kuai.com/t01c4c396e92eebe691.jpg","width":"1080"},{"desc":"","height":"513","title":"","url":"https://p0.ssl.img.360kuai.com/t0196f968ee150cc99b.jpg","width":"1080"},{"desc":"","height":"289","title":"","url":"https://p0.ssl.img.360kuai.com/t01c956cdf45706af21.jpg","width":"1080"},{"desc":"","height":"280","title":"","url":"https://p0.ssl.img.360kuai.com/t0101854165e4788ed2.jpg","width":"1080"},{"desc":"","height":"280","title":"","url":"https://p0.ssl.img.360kuai.com/t010310fb8d36fbb7c0.jpg","width":"1080"},{"desc":"","height":"770","title":"","url":"https://p0.ssl.img.360kuai.com/t017742c3f469d9ef01.jpg","width":"1080"}]}],"original":0,"pat":"qgc,art_src_1,fts0,sts0,op50_st","powerby":"hbase","pub_time":1664955575000,"pure":"","rawurl":"http://zm.news.so.com/8e018cfce9d5486330623f2328d46ba4","redirect":0,"rptid":"475faa1cd56a119b","s":"t","src":"北青网","tag":[],"title":"83岁姥姥随手写出化学结构式惊呆外孙！网友：太厉害了
费琦莉2491尿素的化学式应该点读啊?
褚缪奔15933777740 ______ CO(NH2)2 尿素是碳酰胺俗称,又称脲,是碳酸的全酰胺,结构式为H2N—CO—NH2,白色晶体,熔点为132.7℃,易溶于水和醇,不溶于醚.碳酰胺是最早从人体排泄物中提取的一个纯有机化合物(1773),也是第一个在实验室中由人工合成的有机化合物(1828年). ps:又可以读作————碳酰二胺
费琦莉2491丙二酰脲的结构? -
褚缪奔15933777740 ______[答案]
费琦莉2491尿素的化学式怎样写? -
褚缪奔15933777740 ______ 化学式:CO(NH2)2,分子质量60.06 ,CO(NH2)2无色或白色针状或棒状结晶体,工业或农业品为白色略带微红色固体颗粒,有刺鼻性气味.含氮量约为46.67%.密度1.335g/cm3.熔点132.7℃.溶于水、醇,难溶于乙醚、氯仿.呈弱碱性.
费琦莉2491双缩脲的分子结构式为:NH2—CO—NH—CO—NH2.现在可以用双缩脲试剂来鉴定蛋白质或多肽,其原因主要是: -
褚缪奔15933777740 ______ 很明显,双缩脲的分子结构式为:NH2—CO—NH—CO—NH2,它不是一种蛋白质或多肽,结构也不相似[蛋白质和肽链有空间结构】,排除A和B; 用双缩脲试剂是鉴定双缩脲和蛋白质或多肽的原因是因为它们都含有肽键,双缩脲试剂中的铜离子能在碱性条件下与肽键形成紫色的络合物. 故选D.
费琦莉2491尿素的化学式CO(NH2)2 怎么读? -
褚缪奔15933777740 ______ 碳酰二胺 OH / C=O \ OH 酸的OH被取代后叫做酰,碳酸被取代就叫碳酰
费琦莉2491尿素的分子式,化学名称是什么,有人知道么
褚缪奔15933777740 ______ 分子式:CO(NH2)2,化学名称:碳酸酰二氨,分子量:60
费琦莉2491格列美脲的化学式是什么 -
褚缪奔15933777740 ______ 化学式:C24H34N4O5S(数字都要写成下标形式) 结构式:
费琦莉2491化学:双缩脲(缩二脲)化学式的变化 -
褚缪奔15933777740 ______ H2N-CO-NH-CO-NH2 由两分子尿素脱去一分子氨气形成.
费琦莉2491尿素的化学式 -
褚缪奔15933777740 ______ CO(NH2)2