百度试题 结果1 题目How many atoms are there in the unit cell of the face- centered cubic (FCC) unit cell?相关知识点: 试题来源: 解析 在一个面心立方晶胞中有几个原子 反馈 收藏
How many atoms are there in the unit cell of the face- centered cubic (FCC) unit cell? 扫码下载作业帮搜索答疑一搜即得 答案解析 查看更多优质解析 解答一 举报 在一个面心立方晶胞中有几个原子 解析看不懂?免费查看同类题视频解析查看解答 更多答案(2) ...
In short, most atoms are condensed into stars, most stars are condensed into galaxies, most galaxies into clusters, most clusters into superclusters and, finally, into the largest-scale structures like the Great Wall of galaxies (aka. theSloan Great Wall). On a smaller scale, these clumps ar...
We may have many differences among us; different classes, beliefs, countries, occupations, and even tastes, but one thing that all of us have in common is our microscopic blueprint… we are all made of atoms. This isn’t just shared among fellow humans; rather, it is the case for every...
Water is made up of two elements, hydrogen and oxygen. How many hydrogen atoms are there in one molecule of water? A. One B. Two C. Three D. Four 相关知识点: 试题来源: 解析 B。解析:一个水分子的化学式是H₂O,这表示一个水分子由两个氢原子和一个氧原子组成,所以答案是B。A选项一...
百度试题 结果1 题目How many iodine atoms are there in one molecule of CI?Hi t:Thesymbol⋅forlodineisI 相关知识点: 试题来源: 解析 C4.S_(ΔPCQ)=S_(ΔABO) S_(ΔPOC1)BS_S diN_(2mbev) ofodiveatncmey(2_4=4mbule. 反馈 收藏 ...
百度试题 结果1 题目【题目】How many hydrogen atoms are there in 3 molecules of HCI? 相关知识点: 试题来源: 解析 【解析】Noaf1ogdlogen.atomishmutecule0.|HCl=1 noafluddlagen.atomis3mvoteulea≠HCl=1*3m 反馈 收藏
He 单原子分子 氦原子质量=4.002 602 x 1.667e-27kg =6.672e-27kg 539kg / 6.672e-27kg = 8.0785e28 个氦原子
If there are 12 atoms of Y, how many atoms of X are there? A. 6 atoms B. 8 atoms C. 10 atoms D. 12 atoms 相关知识点: 试题来源: 解析 B。由化学式 X2Y3 可知,X 和 Y 的原子个数比为 2:3,Y 有 12 个原子,设 X 有 x 个原子,则 2:3 = x:12,解得 x = 8。反馈 收藏...
How many oxygen atoms are there in3gof sodium dichromate? Dichromate Ion: Na2Cr2O7 Answer and Explanation:1 Na2Cr2O7 Learn more about this topic: Moles to Atoms | Formula, Calculation & Avogadro's Number from Chapter 2/ Lesson 4 111K