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Chemical reactions activity series

It is important to remember that like many other aids used to predict the products of chemical reactions, activity series are based on experiment. The information that they contain is used as a general guide for predicting reaction outcomes. [Pg.271]

Activated Complex momentary intermediate arrangement of atoms when reactants are converted into products in a chemical reaction, also called transition state Activation Energy minimum energy needed to initiate a chemical reaction Active how easily a metal is oxidized Activity Series a ranking of elements in order of their ability to reduce or oxidize another element... [Pg.335]

Around the world chemical professionals continually commercialize new products and processes. Much of this activity results in batch processing. Fine and custom chemicals can involve as many as ten to twenty batch reactions in series, sometimes with multi-step parallel paths, with various separation technologies between reaction steps. This paper is an attempt to reflect the experience of many individuals as seen through the author s eyes over almost four decades, with several very typical situations. [Pg.313]

The process of cooking involves a complicated series of chemical reactions, each of which proceeds with a rate constant of k. When boiling an egg, for example, the rate-limiting process is denaturation of the proteins from which albumen is made. Such denaturation has an activation energy Ea of about 40 kJ mol 1. [Pg.203]

The introduction of at least one interconversion process (step) having a nature different from the activation-relaxation processes found along the reactant and product channels allows for a distinction between rate-related and mechanistic-related processes among quantum states. A simple reaction is defined by the existence of only one interconversion step. A real chemical reaction can, in principle, be decomposed in a series of simple reactions. [Pg.347]

In this section, you learned that chemical reactions usually proceed as a series of steps called elementary reactions. You related the equations for elementary reactions to rate laws. You learned how the relative speed of the steps in a reaction mechanism help to predict the rate law of an overall reaction. Finally, you learned how a catalyst controls the rate of a chemical reaction hy providing a lower-energy reaction mechanism. In this chapter, you compared activation energies of forward and reverse reactions. In the next unit, you will study, in detail, reactions that proceed in both directions. [Pg.308]

You already know that some metals are more reactive than others. You may also have carried out an investigation on the metal activity series in a previous course. In Investigation 10-A, located on page 470, you will discover how this series is related to oxidation and reduction. You will write chemical equations, ionic equations, and half-reactions for the single displacement reactions of several metals. [Pg.468]

It is remarkable that virtually all amino acid residues in proteins are L stereoisomers. When chiral compounds are formed by ordinary chemical reactions, the result is a racemic mixture of d and l isomers, which are difficult for a chemist to distinguish and separate. But to a living system, D and L isomers are as different as the right hand and the left. The formation of stable, repeating substructures in proteins (Chapter 4) generally requires that their constituent amino acids be of one stereochemical series. Cells are able to specifically synthesize the l isomers of amino acids because the active sites of enzymes are asymmetric, causing the reactions they catalyze to be stereospecific. [Pg.77]

This paper is a continuation of a series of theoretical studies carried out at the Institute of Chemical Physics which seek to give a description of various phenomena of combustion and explosion under the simplest realistic assumptions about the kinetics of the chemical reaction. A characteristic feature of the specific rate (rate constant) of chemical combustion reactions is its strong Arrhenius-like dependence on the temperature with a large value of the activation heat, related to the large thermal effect of the combustion reaction. [Pg.271]

Some Ways that Chemical Reactions Occur 4.8 The Activity Series of the Elements... [Pg.115]

These substituent constants can be used with rate data to evaluate the type and extent of charge development in the activated complex of the rate-determining step for a wide variety of chemical reactions. The rates of reaction for a particular transformation are measured using a series of compounds which differ only by the phenyl substituents present for example,... [Pg.112]


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See also in sourсe #XX -- [ Pg.271 , Pg.272 ]




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Activity series

Chemical activation reactions

Chemical activity

Chemically active

Reaction series reactions

Series reactions

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