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  2. List of unsolved problems in chemistry - Wikipedia

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

    Science. 309 (125th Anniversary). 1 July 2005. Unsolved Problems in Nanotechnology: Chemical Processing by Self-Assembly - Matthew Tirrell - Departments of Chemical Engineering and Materials, Materials Research Laboratory, California NanoSystems Institute, University of California, Santa Barbara [No doc at link, 20 Aug 2016]

  3. 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.

  4. Isaac Asimov - Wikipedia

    en.wikipedia.org/wiki/Isaac_Asimov

    Isaac Asimov (/ ˈ æ z ɪ m ɒ v / AZ-im-ov; [b] [c] c. January 2, 1920 [a] – April 6, 1992) was an American writer and professor of biochemistry at Boston University.During his lifetime, Asimov was considered one of the "Big Three" science fiction writers, along with Robert A. Heinlein and Arthur C. Clarke. [2]

  5. 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.

  6. Antonio Escohotado - Wikipedia

    en.wikipedia.org/wiki/Antonio_Escohotado

    Starting from logic and metaphysics, it penetrates into epistemology and the theory of science, to later derive towards even more properly human phenomena, such as the economy and political power, gender myths and family and sexual customs, or the forms of intoxication. The common impulse in all these fields is an affirmation of human freedom ...

  7. Substitution reaction - Wikipedia

    en.wikipedia.org/wiki/Substitution_reaction

    Substitution reactions in organic chemistry are classified either as electrophilic or nucleophilic depending upon the reagent involved, whether a reactive intermediate involved in the reaction is a carbocation, a carbanion or a free radical, and whether the substrate is aliphatic or aromatic. Detailed understanding of a reaction type helps to ...

  8. Principles of war - Wikipedia

    en.wikipedia.org/wiki/Principles_of_war

    always seek to envelop that part of the enemy against which we direct our main attack; cut off the enemy from his line of retreat; Clausewitz also included in the essay general principles of strategy by saying that Warfare has three main objects: (a) To conquer and destroy the armed power of the enemy; always direct our principal operation ...

  9. 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 ...

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