In water, the hydrogen and oxygen atoms form a
covalent bond to create a water molecule.
在水中,氢原子和氧原子通过共价键结合形成水分子。
The carbon atoms in diamond share
covalent bonds with each other to give it its strong structure.
钻石中的碳原子之间通过共价键共享,赋予其坚固的结构。
Ammonia (NH3) is an example of a
covalent compound where nitrogen shares three pairs of electrons with three hydrogen atoms.
氨(NH3)是一个共价化合物的例子,氮原子与三个氢原子共享三对电子。
Silicon dioxide (SiO2) exhibits
covalent bonding between silicon and oxygen atoms.
硅酸盐(SiO2)展示了硅原子和氧原子之间的共价键合。
A double
covalent bond exists between two carbon atoms in an ethylene (C2H4) molecule.
乙烯(C2H4)分子中两个碳原子之间存在一个双键共价键。
Covalent bonds are responsible for holding together the nitrogenous base pairs in DNA molecules.
共价键负责在DNA分子中连接氮碱基对。
Sodium chloride (NaCl), on the other hand, doesn't involve
covalent bonding; instead, it's held together by ionic bonds.
另一方面,氯化钠(NaCl)不涉及共价键,而是通过离子键结合在一起。
The formation of methane (CH4) involves four single
covalent bonds between one carbon atom and four hydrogen atoms.
甲烷(CH4)的形成涉及一个碳原子与四个氢原子之间形成的四个单共价键。
In a
covalent network solid like quartz (SiO2), each silicon atom forms
covalent bonds with four oxygen atoms.
在像石英(SiO2)这样的共价网络固体中,每个硅原子与四个氧原子形成共价键。
In proteins, the peptide bond that links amino acids together is also a type of
covalent bond.
在蛋白质中,将氨基酸连接在一起的肽键也是一种共价键。
Feng Wei said his team, by altering covalent fluorocarbon structures, developed the new fluorinated carbon material with both high energy density and high power density, or long battery duration and large energy discharge, a property lacking in existing fluorinated carbon materials.
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