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
    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: Formulas, Structures, and Reactions - ChemTalk
    Read this tutorial for help on alkane! In this article, you will learn about chemistry and structure of alkanes, as well as some important reactions!
  • 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
  • Alkane: Definition, Formula, Structure, Examples, and Uses
    Cracking is the process in which large alkane molecules break down into smaller hydrocarbons when heated to high temperatures, often in the presence of a catalyst:
  • 17 Nomenclature and Physical Properties of Alkanes and Cycloalkanes
    All C atoms in an alkane are surrounded by four groups, making them sp 3 hybridized and tetrahedral, and all bond angles are 109 5° General formula of alkanes is C n H 2n+2
  • Alkanes- Definition, Structure, Properties, Reactions, Uses
    Sodium salt of carboxylic acid when heated with soda lime (NaOH+CaO) alkane is formed Thus, a produced alkane consists of one carbon less than the original acid
  • 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 This long-chain structure is known as octane
  • Alkanes: Types, Nomenclature, Properties, Structural Formula
    The simplest cyclic alkane is cyclopropane (C 3 H 6), which consists of a three-carbon ring, while cyclobutane (C 4 H 8), cyclopentane (C 5 H 10), and cyclohexane (C 6 H 12) are examples of cyclic alkanes with four, five, and six carbon atoms in their rings, respectively
  • Alkane - Simple English Wikipedia, the free encyclopedia
    The simplest alkane is methane, which is made of one carbon atom and four hydrogen atoms Larger alkanes have two or more carbon atoms connected or bonded together in a chain
  • Alkane - New World Encyclopedia
    Chemical structure of methane, the simplest alkane Alkanes are chemical compounds that consist only of the elements carbon (C) and hydrogen (H) (i e , hydrocarbons), where each of these atoms are linked together exclusively by single bonds (i e , they are saturated compounds)





中文字典-英文字典  2005-2009