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  2. Elementary reaction - Wikipedia

    en.wikipedia.org/wiki/Elementary_reaction

    An elementary reaction is a chemical reaction in which one or more chemical species react directly to form products in a single reaction step and with a single transition state. In practice, a reaction is assumed to be elementary if no reaction intermediates have been detected or need to be postulated to describe the reaction on a molecular ...

  3. Transition state theory - Wikipedia

    en.wikipedia.org/wiki/Transition_state_theory

    Figure 1: Reaction coordinate diagram for the bimolecular nucleophilic substitution (S N 2) reaction between bromomethane and the hydroxide anion. In chemistry, transition state theory (TST) explains the reaction rates of elementary chemical reactions.

  4. Chemical reaction - Wikipedia

    en.wikipedia.org/wiki/Chemical_reaction

    The elementary reaction is the smallest division into which a chemical reaction can be decomposed, it has no intermediate products. [13] Most experimentally observed reactions are built up from many elementary reactions that occur in parallel or sequentially. The actual sequence of the individual elementary reactions is known as reaction ...

  5. Law of mass action - Wikipedia

    en.wikipedia.org/wiki/Law_of_mass_action

    However, all reactions can be represented as a series of elementary reactions and, if the mechanism is known in detail, the rate equation for each individual step is given by the expression so that the overall rate equation can be derived from the individual steps. When this is done the equilibrium constant is obtained correctly from the rate ...

  6. Molecularity - Wikipedia

    en.wikipedia.org/wiki/Molecularity

    In chemistry, molecularity is the number of molecules that come together to react in an elementary (single-step) reaction [1] and is equal to the sum of stoichiometric coefficients of reactants in the elementary reaction with effective collision (sufficient energy) and correct orientation. [2]

  7. Reaction step - Wikipedia

    en.wikipedia.org/wiki/Reaction_step

    In chemistry, a reaction step of a chemical reaction is defined as: "An elementary reaction, constituting one of the stages of a stepwise reaction in which a reaction intermediate (or, for the first step, the reactants) is converted into the next reaction intermediate (or, for the last step, the products) in the sequence of intermediates between reactants and products". [1]

  8. Reaction mechanism - Wikipedia

    en.wikipedia.org/wiki/Reaction_mechanism

    In chemistry, a reaction mechanism is the step by step sequence of elementary reactions by which overall chemical reaction occurs. [1] A chemical mechanism is a theoretical conjecture that tries to describe in detail what takes place at each stage of an overall chemical reaction. The detailed steps of a reaction are not observable in most cases.

  9. AP Chemistry - Wikipedia

    en.wikipedia.org/wiki/AP_Chemistry

    AP Chemistry is a course geared toward students with interests in chemical biologies, as well as any of the biological sciences. The course aims to prepare students to take the AP Chemistry exam toward the end of the academic year. AP Chemistry covers most introductory general chemistry topics (excluding organic chemistry), including: Reactions

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