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  2. List of chemistry mnemonics - Wikipedia

    en.wikipedia.org/wiki/List_of_chemistry_mnemonics

    A mnemonic is a memory aid used to improve long-term memory and make the process of consolidation easier. Many chemistry aspects, rules, names of compounds, sequences of elements, their reactivity, etc., can be easily and efficiently memorized with the help of mnemonics. This article contains the list of certain mnemonics in chemistry.

  3. Reactivity series - Wikipedia

    en.wikipedia.org/wiki/Reactivity_series

    The reactivity series is sometimes quoted in the strict reverse order of standard electrode potentials, when it is also known as the "electrochemical series". [8] The following list includes the metallic elements of the first six periods. It is mostly based on tables provided by NIST.

  4. Möbius–Hückel concept - Wikipedia

    en.wikipedia.org/wiki/Möbius–Hückel_concept

    A circle mnemonic [3] was advanced which provides the MO energies of the system; this was the counterpart of the Frost–Musulin mnemonic [6] for ordinary Hückel systems. It was concluded that 4 n electrons is the preferred number for Möbius moieties in contrast to the common 4 n + 2 electrons for Hückel systems.

  5. Reactivity (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Reactivity_(chemistry)

    In chemistry, reactivity is the impulse for which a chemical substance undergoes a chemical reaction, either by itself or with other materials, with an overall release of energy. Reactivity refers to: the chemical reactions of a single substance, the chemical reactions of two or more substances that interact with each other,

  6. Dewar reactivity number - Wikipedia

    en.wikipedia.org/wiki/Dewar_reactivity_number

    Dewar's reactivity number is then defined as = (+). Clearly, the smaller the value of N i, the less the destabilization energy in going towards the transition state and the more reactive the site. Thus, by computation of the molecular orbital coefficients it is possible to evaluate Dewar's number for all the sites and establish which one will ...

  7. Single displacement reaction - Wikipedia

    en.wikipedia.org/wiki/Single_displacement_reaction

    These reactions are exothermic and the rise in temperature is usually in the order of the reactivity of the different metals. [5] If the reactant in elemental form is not the more reactive metal, then no reaction will occur. Some examples of this would be the reverse. + No Reaction

  8. Reactivity - Wikipedia

    en.wikipedia.org/wiki/Reactivity

    Reactivity may refer to: Reactivity (chemistry) , the rate at which a chemical substance tends to undergo a chemical reaction Reactive programming , a property of an execution model whereby changes are automatically propagated through a dataflow network

  9. Nucleophile - Wikipedia

    en.wikipedia.org/wiki/Nucleophile

    In general, in a group across the periodic table, the more basic the ion (the higher the pK a of the conjugate acid) the more reactive it is as a nucleophile. Within a series of nucleophiles with the same attacking element (e.g. oxygen), the order of nucleophilicity will follow basicity.