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:


  • Acetylene - Wikipedia
    Acetylene was discovered in 1836 by Edmund Davy, who identified it as a "new carburet of hydrogen" [13][14] It was an accidental discovery while attempting to isolate potassium metal
  • Ethylene - Wikipedia
    Ethylene (IUPAC name: ethene) is a hydrocarbon which has the formula C2H4 or H2C=CH2 It is a colourless, flammable gas with a faint "sweet and musky " odour when pure [7] It is the simplest alkene (a hydrocarbon with carbon–carbon double bonds)
  • Acetylene | C2H2 | CID 6326 - PubChem
    Acetylene appears as a colorless gas with a faint garlic-like odor Easily ignited and burns with a sooty flame Gas is lighter than air Flame may flash back to the source of a leak very easily Under prolonged exposure to fire or heat the containers may rupture violently and rocket
  • Acetylene | Description, Properties, Uses | Britannica
    acetylene, the simplest and best-known member of the hydrocarbon series containing one or more pairs of carbon atoms linked by triple bonds, called the acetylenic series, or alkynes
  • Bonding in Ethyne (Acetylene) - Chemistry LibreTexts
    Ethyne, C2H2, has a triple bond between the two carbon atoms In the diagram each line represents one pair of shared electrons If you have read the ethene page, you will expect that ethyne is going to be more complicated than this simple structure suggests
  • What is Ethyne? - BYJUS
    Ethyne, also known as acetylene, is an organic chemical compound with the chemical formula C2H2 Since the entire chemical composition only features hydrogen and carbon atoms, this compound is a hydrocarbon
  • Ethyne: Structure, Preparation, Uses Key Properties Explained - Vedantu
    Ethyne, commonly known as acetylene, is the simplest alkyne with the chemical formula C₂H₂ Its structure features two carbon atoms connected by a triple bond (one sigma and two pi bonds) and each carbon atom is also bonded to one hydrogen atom
  • Ethyne | Formula, Properties Application
    Ethyne, also known as acetylene, is a simple aliphatic hydrocarbon Its chemical formula is C 2 H 2, making it the simplest member of the alkynes, a group of hydrocarbons that contain a carbon-carbon triple bond
  • 3. 10: Bonding in Ethyne - Chemistry LibreTexts
    Consider, for example, the structure of ethyne (another common name is acetylene), the simplest alkyne This molecule is linear: all four atoms lie in a straight line The carbon-carbon triple bond is only 1 20Å long In the hybrid orbital picture of acetylene, both carbons are sp-hybridized
  • Acetylene - NIST Chemistry WebBook
    NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access The purpose of the fee is to recover costs associated with the development of data collections included in such sites Your institution may already be a subscriber





中文字典-英文字典  2005-2009