Reaction Quotient

Science / Chemistry / Reaction Quotient: The product of the concentrations of the products, divided by the product of the concentrations of the reactants, for a chemical reaction which is not necessarily at equilibrium. For example, the reaction quotient for A + B = C + D is equal to (C)(D) / ((A)(B)), where the parentheses indicate concentrations. Each concentration is raised to a power equal to its stoichiometric coefficient in the expression. The reaction quotient for A + 2B = 3C is equal to (C)3/((A)(B)2). For gas phase reactions, partial pressures can be used in the reaction quotient in place of concentrations.

Other Words for Reaction

Reaction Verb Synonyms: retaliation, reciprocation, reprisal, revenge
Reaction Noun Synonyms: response, reply, answer, effect, feedback

Reaction Series

Science / Geology / Reaction Series: A series of interactions between a melt and mineral crystals in contact with the melt. In a reaction series the first formed crystals (highest temperature minerals) react with the melt to produce a ne MORE

Rearrangement Reaction

Science / Chemistry / Rearrangement Reaction: A reaction in which a reactant and product are isomers of each other. Chemical bonds within the reactant are broken and reformed to produce the product. MORE

Redox Reaction

Science / Chemistry / Redox Reaction: A reaction that involves transfer of electrons from one substance to another. Redox reactions always involve a change in oxidation number for at least two elements in the reactants. MORE