Definitions R Flashcards
Radical
A species with an unpaired electron
Rate of reaction
The change in concentration of a reactant or product in a given time
Redox reaction
A reaction involving reduction and oxidation
Reducing agent
A reagent that reduces another species
Reduction
Gain of electrons or a decrease in oxidation number
Reflux
The continual boiling and condensing of a reaction mixture back to the original container to ensure that the reaction takes place without the contents of the flask boiling dry
Relative atomic mass
The weighted mean mass of an atom of an element compared with 1/12 of the mass of an atom of carbon 12
Relative formula mass
The weighted mean mass of the formula unit of a compound compared with 1/12 of the mass of an atom of carbon 12
Relative isotopic mass
The mass of an isotope compared with 1/12 of the mass of an atom of carbon 12
Relative molecular mass
The weighted mean mass of a molecule of a compound compared with 1/12 of the mass of an atom of carbon 12
Reversible reaction
A reaction that takes place in both directions
