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  2. Lewis structure - Wikipedia

    en.wikipedia.org/wiki/Lewis_structure

    Expressing resonance when drawing Lewis structures may be done either by drawing each of the possible resonance forms and placing double-headed arrows between them or by using dashed lines to represent the partial bonds (although the latter is a good representation of the resonance hybrid which is not, formally speaking, a Lewis structure).

  3. Alkyne - Wikipedia

    en.wikipedia.org/wiki/Alkyne

    A 3D model of ethyne (), the simplest alkyneIn organic chemistry, an alkyne is an unsaturated hydrocarbon containing at least one carbon—carbon triple bond. [1] The simplest acyclic alkynes with only one triple bond and no other functional groups form a homologous series with the general chemical formula C n H 2n−2.

  4. 2-Butyne - Wikipedia

    en.wikipedia.org/wiki/2-butyne

    Symmetry analysis using the Molecular Symmetry Group [4] [5] G 36 shows that one would need to analyse its high resolution rotation-vibration Raman spectrum to determine its equilibrium structure. 2-Butyne ( dimethylethyne ) forms with 5-decyne ( dibutylethyne ), 4-octyne ( dipropylethyne ) and 3-hexyne ( diethylethyne ) a group of symmetric ...

  5. Acetylene - Wikipedia

    en.wikipedia.org/wiki/Acetylene

    Acetylene (systematic name: ethyne) is the chemical compound with the formula C 2 H 2 and structure H−C≡C−H. It is a hydrocarbon and the simplest alkyne. [8] This colorless gas is widely used as a fuel and a chemical building block. It is unstable in its pure form and thus is usually handled as a solution. [9]

  6. Feds find Worcester, Massachusetts police used force, had ...

    www.aol.com/feds-worcester-massachusetts-police...

    Investigators said they had “serious concerns” about “credible reports of sexual assault and other sexual misconduct" by the officers.

  7. 2024 has been a nerve-wracking year for plane travel. How ...

    www.aol.com/finance/2024-nerve-wracking-plane...

    Anxious airline flyers may well remember 2024 as the year their worst fears about the safety of air travel felt confirmed, as a series of unprecedented, and in some cases fatal, airplane incidents ...

  8. ‘Brain Rot’ is Oxford’s Word of the Year - AOL

    www.aol.com/entertainment/brain-rot-oxford-word...

    Credit - Denis Novikov—iStock/Getty Images. I f you’ve been scrolling too long on social media, you might be suffering from “brain rot,” the word of 2024, per the publisher of the Oxford ...

  9. Simplified Molecular Input Line Entry System - Wikipedia

    en.wikipedia.org/wiki/Simplified_Molecular_Input...

    The Simplified Molecular Input Line Entry System (SMILES) is a specification in the form of a line notation for describing the structure of chemical species using short ASCII strings. SMILES strings can be imported by most molecule editors for conversion back into two-dimensional drawings or three-dimensional models of the molecules.