A chemical transformation or change brought about by the interaction of two substances.

Defined by a group of reactant molecules, a group of product molecules, and their respective stoichiometric coefficients. Often expressed in the form: aA + bB + ... - qQ + rR + ... The reaction is typically stoichiometrically balanced, but in special cases, unbalanced reactions will be allowed if the "balanced" stoichiometric flag is set to false (e.g., MW growth reactions where tracking hydrogen is not useful or desired).

In chemistry, any process in which the arrangement of atoms into molecules is changed.

in chemistry, a change or transformation in which a substance decomposes, combines with other substances, or interchanges constituents with other substances.

A general term used to describe a chemical process during which reactants become products. rate of reaction The speed at which a chemical reaction takes place measured by a variety of means. Rates of reaction are influenced by the concentrations or pressures of the reactants, the surface area of the reactants, the temperature of the reaction and the presence or absence of a catalyst.

(chemistry) a process in which one or more substances are changed into others; "there was a chemical reaction of the lime with the ground water"

A chemical process by which some chemicals ( reactants) are turned into other chemicals ( products). Chemical reactions are the basis of the whole of chemistry. Without them, this tutorial would be full of blank pages

A chemical reaction specifies the transformation of reactants (A,B,...) into products (C,D,...). In general, pA + qB + ... - rC + sD + ..., where p,q,r,s,... are integers, called stoichiometric coefficients, that are constrained by the requirement of balancing all atoms and electric charges that appear on the two sides of the arrow. If a reaction is not at equilibrium, then it will proceed at a rate v that depends on the current concentrations of all the reagents, [A],[B],[C],[D],..., and possibly on the concentrations of catalysts (enzymes) in the reaction mixture. (v 0 means reactants converted into products, v 0 means products converted into reactants.)

the process by which two or more molecules combine and rearrange to form a new molecule or series of molecules. Reactions are the basis of most chemical processes and understanding them the essence of much of chemistry. Reactions usually involve the making and breaking of bonds, thus their accurate modeling requires quantum mechanical methods.

Chemistry - A change in which one or more chemical elements or compounds (the reactant) form new compounds (the products). All reactions are to some extent reversible; i.e., the products can also react to give the original reactants. However, in many cases the extent of this back reaction is negligibly small, and the reaction is regarded as irreversible. Biology - Any change in behavior of an organism in response to a stimulus.

a chemical reaction is a dissociation, recombination or rearrangement of atoms.

A chemical transformation or change; the interaction of two or more substances to form new substances. Any substance used in a reaction for the purpose of detecting, measuring, examining or analyzing other substances.

when two or more chemicals combine to make a new chemical substance.