What is the arrangement of carbon atoms in graphene? A. Square lattice. B. Triangular lattice. C. Hexagonal lattice. D. Circular lattice. 相关知识点: 试题来源: 解析 C。中文解析:文章明确指出石墨烯是由单层碳原子排列成六边形格子。A 选项“正方形格子”错误;B 选项“三角形格子”错误;D 选项“...
A. Silicon atoms. B. Carbon atoms. C. Oxygen atoms. D. Hydrogen atoms. 相关知识点: 试题来源: 解析 B。解析:文章中明确提到“Graphene is an extremely thin and strong material. It is made up of a single layer of carbon atoms arranged in a hexagonal lattice.”,石墨烯是由一层碳原子组成...
What is the hybridization of the carbon atoms in ethylene? A. sp B. sp² C. sp³ D. dsp² 相关知识点: 试题来源: 解析 B。解析:乙烯(C₂H₄)中碳原子采用sp²杂化。sp杂化常见于碳碳三键的情况。sp³杂化常见于饱和碳原子。dsp²杂化主要出现在一些配合物中,与乙烯结构不符。
Atoms are the basis of all the elements in the universe, the building blocks of all visible matter, and the secret to nuclear power.
结果1 题目 4.What is the best description of the hybridization of each of the carbon atoms (from left to right) in the compound NCCH,CO,H? a a. sp, sp3, sp2 b. Sp^2,sp^3,sp^2 c. sp, sp2, sp3 d. sp2, sp3, sp3 相关知识点: 试题来源: 解析 a 反馈 收藏 ...
We were given 78.54 grams of chromium and asked to find the mass of carbon with the same number of atoms to it. We will need the molar mass of... Learn more about this topic: Molar Mass | Definition, Formula & Examples from
To complicate things a bit more, we sometimes find atoms of a chemical element that are a bit different to what we expect. Take carbon, for example. The ordinary carbon we find in the world around us is sometimes called carbon-12. It has six protons, six electrons, and six neutrons, ...
Graphite and diamonds are made up of carbon atoms. Graphite, however, is soft and can be used to write with while diamonds are the hardest substance known to man and are the only substances that can be used to cut other diamonds. What is the main rea...
百度试题 结果1 题目39 In the addition polymer poly(propene), what is the simplest ratio of carbon atoms to hydrogen atoms?,A carbon hydrogen atoms atoms A12一B21C24D36 相关知识点: 试题来源: 解析 A 反馈 收藏
All lipids are made up of the same atoms: carbon (C), hydrogen (H) and oxygen (O). Lipids contain the same elements that make up carbohydrates but in different proportions. Lipids have a large proportion of carbon and hydrogen bonds and a small proportion of oxygen atoms. Although the st...