英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字,中文词皆可:



安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Alkane - Wikipedia
    Chemical structure of methane, the simplest alkane In organic chemistry, an alkane, or paraffin (a historical trivial name that also has other meanings), is an acyclic saturated hydrocarbon In other words, an alkane consists of hydrogen and carbon atoms arranged in a tree structure in which all the carbon–carbon bonds are single [1]
  • Alkanes - Chemistry LibreTexts
    The distinguishing feature of an alkane, making it distinct from other compounds that also exclusively contain carbon and hydrogen, is its lack of unsaturation That is to say, it contains no double or triple bonds, which are highly reactive in organic chemistry
  • Alkanes- Definition, Structure, Properties, Reactions, Uses
    Structure of Alkane In methane, carbon forms four sigma bonds with hydrogen atoms Carbon is covalently bonded with four hydrogen atoms It uses its sp 3 hybrid orbitals to form these bonds While in the case of ethane there are six C-H covalent bonds and a C-C covalent bond
  • What are Alkanes? - BYJUS
    In a long chain alkane molecule, additional carbon atoms are attached to each other with the help of a single covalent bond Each atom is attached to the sufficient hydrogen atoms to develop a total of four single covalent bonds
  • Alkanes: Formulas, Structures, and Reactions - ChemTalk
    Alkane Structure Alkanes are hydrocarbons (compounds consisting entirely of carbons and hydrogens) whose bonds are all sigma (σ) bonds That is, the carbons of an alkane form single bonds with each other and with the hydrogen atoms
  • Alkanes and alkenes - Hydrocarbons - National 4 . . . - BBC
    Alkanes contain more than double the number of hydrogen atoms than carbon atoms To calculate how many hydrogen atoms an alkane has, double the number of carbons and add two
  • Organic Chemistry Alkanes - Wikibooks, open books for an open . . .
    The distinguishing feature of an alkane, making it distinct from other compounds that also exclusively contain carbon and hydrogen, is its lack of unsaturation That is to say, it contains no double or triple bonds, which are highly reactive in organic chemistry
  • Alkanes, Alkenes, and Alkynes Explained
    Alkanes, also known as paraffins, are the simplest type of hydrocarbons They are composed only of carbon (C) and hydrogen (H) atoms, connected by single covalent bonds Each carbon atom in an alkane is sp³ hybridized, meaning it forms four single bonds in a tetrahedral arrangement
  • Alkane - an overview | ScienceDirect Topics
    An alkane is defined as a compound consisting of carbon and hydrogen atoms bonded together by single carbon-carbon and carbon-hydrogen bonds Alkanes are also known as saturated hydrocarbons due to their maximum single bond capacity, with the formula CnH2n+2 for noncyclic structures





中文字典-英文字典  2005-2009