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  2. Acetic anhydride - Wikipedia

    en.wikipedia.org/wiki/Acetic_anhydride

    Acetic anhydride, like most organic acid anhydrides, is a flexible molecule with a nonplanar structure. [4] The pi system linkage through the central oxygen offers very weak resonance stabilization compared to the dipole-dipole repulsion between the two carbonyl oxygens. The energy barriers to bond rotation between each of the optimal aplanar ...

  3. Tricarbon monoxide - Wikipedia

    en.wikipedia.org/wiki/Tricarbon_monoxide

    Tricarbon monoxide C 3 O is a reactive radical oxocarbon molecule found in space, and which can be made as a transient substance in the laboratory. It can be trapped in an inert gas matrix or made as a short lived gas.

  4. Polar bear - Wikipedia

    en.wikipedia.org/wiki/Polar_bear

    The polar bear (Ursus maritimus) is a large bear native to the Arctic and nearby areas. It is closely related to the brown bear, and the two species can interbreed.The polar bear is the largest extant species of bear and land carnivore, with adult males weighing 300–800 kg (660–1,760 lb).

  5. CH3O - Wikipedia

    en.wikipedia.org/wiki/CH3O

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us

  6. Chemical polarity - Wikipedia

    en.wikipedia.org/wiki/Chemical_polarity

    For example, the water molecule (H 2 O) contains two polar O−H bonds in a bent (nonlinear) geometry. The bond dipole moments do not cancel, so that the molecule forms a molecular dipole with its negative pole at the oxygen and its positive pole midway between the two hydrogen atoms. In the figure each bond joins the central O atom with a ...

  7. Scientists say study found a direct link between greenhouse ...

    www.aol.com/news/scientists-study-found-direct...

    Fifteen years after polar bears were listed as threatened, a new study says researchers have overcome a roadblock in the Endangered Species Act that prevented the federal government from ...

  8. Can You Solve the ‘I Turn Polar Bears White’ Riddle?

    www.aol.com/solve-turn-polar-bears-white...

    The polar bear, crying, bubble baths and pancakes act as distractions. The only logical response is that no, you cannot guess a cohesive riddle based on those clues.

  9. Carbon–oxygen bond - Wikipedia

    en.wikipedia.org/wiki/Carbon–oxygen_bond

    A carbon–oxygen bond is a polar covalent bond between atoms of carbon and oxygen. [1] [2] [3]: 16–22 Carbon–oxygen bonds are found in many inorganic compounds such as carbon oxides and oxohalides, carbonates and metal carbonyls, [4] and in organic compounds such as alcohols, ethers, and carbonyl compounds.