Ads
related to: examples of chemical reaction
Search results
Results From The WOW.Com Content Network
A chemical reaction is a process that leads to the chemical transformation of one set of ... For example, the [4+2] Diels-Alder reactions can be assisted by heat ...
Weak acids and bases undergo reversible reactions. For example, carbonic acid: H 2 CO 3 (l) + H 2 O (l) ⇌ HCO 3 − (aq) + H 3 O + (aq). The concentrations of reactants and products in an equilibrium mixture are determined by the analytical concentrations of the reagents (A and B or C and D) and the equilibrium constant, K.
A stirred BZ reaction mixture showing changes in color over time. In chemistry, a chemical oscillator is a complex mixture of reacting chemical compounds in which the concentration of one or more components exhibits periodic changes.
A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and chemical formulas.The reactant entities are given on the left-hand side and the product entities are on the right-hand side with a plus sign between the entities in both the reactants and the products, and an arrow that points towards the products to show the direction of the reaction. [1]
Organic azides also provide an example of an insertion reaction in organic synthesis and, like the above examples, the transformations proceed with loss of nitrogen gas. When tosyl azide reacts with norbornadiene, a ring expansion reaction takes place in which a nitrogen atom is inserted into a carbon-carbon bond α- to the bridge head: [14]
For example the reaction of acetophenone with bromine to give phenacyl bromide. Oscillating reactions such as the Belousov–Zhabotinsky reaction are more complicated examples that involve autocatalysis. [2] In such reactions the concentrations of some intermediates oscillate, as does the rate of formation of products.
Chemical synthesis (chemical combination) is the artificial execution of chemical reactions to obtain one or several products. [1] This occurs by physical and chemical manipulations usually involving one or more reactions.
Reactions are also categorized by the change in the carbon framework. Examples are ring expansion and ring contraction, homologation reactions, polymerization reactions, insertion reactions, ring-opening reactions and ring-closing reactions. Organic reactions can also be classified by the type of bond to carbon with respect to the element involved.