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  1. Dictionary
    reaction
    /rɪˈakʃn/

    noun

    • 1. something done, felt, or thought in response to a situation or event: "my immediate reaction was one of relief" Similar responseanswerreplyrejoinder
    • 2. a chemical process in which substances act mutually on each other and are changed into different substances, or one substance changes into other substances: "a chemical reaction caused by a build-up of particular sodium salts"

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  2. Chemical Reactions -A chemical reaction is in which the bonds are broken within reactant molecules, and new bonds are formed within product molecules in order to form a new substance. Chemical reactions are all around us. Chemical reactions are continually taking place on our planet. To learn Definition, Equations, Types, Examples with FAQs of Chemical Reactions. Visit BYJU’S for more ...

  3. Factors Affecting the Rate of Reaction Rate of Reaction Formula Instantaneous Rate of Reaction. The rate of reaction refers to the speed at which the products are formed from the reactants in a chemical reaction. It gives some insight into the time frame under which a reaction can be completed. For example, the reaction rate of the combustion ...

  4. Endothermic Reaction Examples. When ammonium chloride (NH 4 Cl) is dissolved in water, an endothermic reaction takes place. The salt dissociates into ammonium (NH 4+) and chloride (Cl –) ions. The chemical equation can be written as follows: NH4Cl (s) + H2O (l) NH4Cl (aq) – Heat. Ammonium nitrate (NH 4 NO 3), an important component in ...

  5. The Wurtz reaction is a very useful reaction in the fields of organic chemistry and organometallic chemistry for the formation of alkanes. In this reaction, two different alkyl halides are coupled to yield a longer alkane chain with the help of sodium and dry ether solution. This reaction is named after the French chemist Charles Adolphe Wurtz ...

  6. A photodecomposition reaction is a type of decomposition reaction in which the reactant is broken down to its constituents by absorbing energy from photons. An example of a photo decomposition reaction is the decomposition of ozone into dioxygen and an oxygen radical, as represented by the chemical equation provided below. O3 + hν → O2 + O.

  7. A neutralization reaction can be defined as a chemical reaction in which an acid and base quantitatively react together to form a salt and water as products. In a neutralization reaction, there is a combination of H + ions and OH – ions which form water. A neutralisation reaction is generally an acid-base neutralization reaction.

  8. Disproportionation Reaction Examples. Let us look at a few examples of disproportionation reactions. Example 1: Decomposition reaction of hydrogen peroxide. Here, oxygen experiences disproportionation. So, the oxygen of peroxide present in the −1 state gets converted to the zero oxidation state in O 2 and, at the same time, decreases to the ...

  9. Oxidation and Reduction reactions- The chemical reactions which involve the transfer of electrons from one chemical substance to another. These electron-transfer reactions are termed as oxidation-reduction reactions or Redox reactions. The oxidation and reduction reaction also involve the addition of oxygen or hydrogen to different substances. To learn more about the examples of oxidation and ...

  10. The term ‘precipitation reaction’ can be defined as “ a chemical reaction occurring in an aqueous solution where two ionic bonds combine, resulting in the formation of an insoluble salt”. These insoluble salts formed in precipitation reactions are called precipitates. Precipitation reactions are usually double displacement reactions ...

  11. Reaction Order. The order of reaction can be defined as the power dependence of rate on the concentration of all reactants. For example, the rate of a first-order reaction is dependent solely on the concentration of one species in the reaction. Some characteristics of the reaction order for a chemical reaction are listed below.