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  2. List of unsolved problems in chemistry - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    This article needs attention from an expert in chemistry. The specific problem is: Incomplete list. WikiProject Chemistry may be able to help recruit an expert.

  3. Chemistry - Wikipedia

    en.wikipedia.org/wiki/Chemistry

    Chemistry is the scientific study of the properties and behavior of matter. [1] It is a physical science within the natural sciences that studies the chemical elements that make up matter and compounds made of atoms, molecules and ions: their composition, structure, properties, behavior and the changes they undergo during reactions with other substances.

  4. The Enemy (Bagley novel) - Wikipedia

    en.wikipedia.org/wiki/The_Enemy_(Bagley_novel)

    The Enemy is a first person narrative espionage thriller novel by English author Desmond Bagley, first published in 1977. In 2001 it was made into a movie starring Roger Moore , Luke Perry and Olivia d'Abo .

  5. General chemistry - Wikipedia

    en.wikipedia.org/wiki/General_chemistry

    General chemistry (sometimes referred to as "gen chem") is offered by colleges and universities as an introductory level chemistry course usually taken by students during their first year. [1] The course is usually run with a concurrent lab section that gives students an opportunity to experience a laboratory environment and carry out ...

  6. Antagonist - Wikipedia

    en.wikipedia.org/wiki/Antagonist

    The antagonist is commonly positioned against the protagonist and their world order. [4] While narratives often portray the protagonist as a hero and the antagonist as a villain, like Harry Potter and Lord Voldemort in Harry Potter, the antagonist does not always appear as the villain.

  7. VSEPR theory - Wikipedia

    en.wikipedia.org/wiki/VSEPR_theory

    [1]: 398 For example in the molecule methyl isocyanate (H 3 C-N=C=O), the two carbons and one nitrogen are central atoms, and the three hydrogens and one oxygen are terminal atoms. [1]: 416 The geometry of the central atoms and their non-bonding electron pairs in turn determine the geometry of the larger whole molecule.

  8. The Enemy (Higson novel) - Wikipedia

    en.wikipedia.org/wiki/The_Enemy_(Higson_novel)

    The Enemy is a post-apocalyptic young adult horror novel written by Charlie Higson. The book takes place in London, United Kingdom, after a worldwide sickness has infected adults, turning them into something akin to voracious, cannibalistic zombies. Puffin Books released The Enemy in the UK on 3 September 2009, Disney Hyperion in the US on 11 ...

  9. Chemical weapon - Wikipedia

    en.wikipedia.org/wiki/Chemical_weapon

    A chemical weapon (CW) is a specialized munition that uses chemicals formulated to inflict death or harm on humans. According to the Organisation for the Prohibition of Chemical Weapons (OPCW), this can be any chemical compound intended as a weapon "or its precursor that can cause death, injury, temporary incapacitation or sensory irritation through its chemical action.

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    related to: the main enemy review questions class 10 chemistry chapter 1 class 12