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).
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.
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 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.
A price movement against the prevailing trend. A reaction differs from a secondary correction in that it may occur within the short-term trend, intermediate term trend, or the long-term trend, whereas a secondary correction is an intermediate reaction occurring within the long-term trend.
The mutual or reciprocal action of chemical agents upon each other, or the action upon such chemical agents of some form of energy, as heat, light, or electricity, resulting in a chemical change in one or more of these agents, with the production of new compounds or the manifestation of distinctive characters. See Blowpipe reaction, Flame reaction, under Blowpipe, and Flame.
An action induced by vital resistance to some other action; depression or exhaustion of vital force consequent on overexertion or overstimulation; heightened activity and overaction succeeding depression or shock.
A reversal of a trend in the movement of share prices. For example, there will be a fall in the price of shares following a rally as everyone quickly tries to makes profits. Also known as a correction.
For every action there is an opposite and equal reaction. Water pushes back equal to the energy exerted against it. With every movement, water's natural resistance provides a time-efficient workout while toning the muscle pairs equally. In water, the amount of resistance can be instantly adjusted by the individual's own exertion to be as challenging or light as desired. Couples can workout together-each at their own pace-and water fittness classes can accommodate a wide range of skills and fitntness levels.
Reaction = Mood. Seperating body and spirit was an ancient Greek fantasy, that caused Roman Christians to believe in weird ideas like 'flying spirits'. Reactions vary between 'tension' and 'being relaxed', or between 'fear' and 'laughing'. In terms of original moods between 'being careful' and being unconditionally 'playful'. The mood' being careful' can finally result in action between killing and running.
In a disaster, the action taken on notification of a threat, including initial response procedures and prior to the recovery stage. Reaction to disasters should be based on sound planning. For the use of this term in its chemical sense, see Chemical reaction. See also Counter-disaster plan; Initial response procedures; Recovery.
In classical mechanics, Newton's third law states that forces occur in pairs, one called the action and the other the reaction. Both forces are equal in magnitude and opposite in direction. The distinction between action and reaction is purely arbitrary: anyone of the two forces can be considered an action, in which case the other (corresponding) force automatically becomes its associated reaction.
A counterforce imparted to a speaker enclosure in response to the air resistance to the motion of a moving diaphragm or cone. On a thick carpet, a reacting enclosure will rock slightly back and forth, impairing LF quality and overall detail. See "spike."