Category
page 1Eponymous chemical rules
Markovnikov's rule
empirical rule for predicting the outcome of some addition reactions
Zaitsev's rule
empirical rule predicting the major product(s) in elimination reaction
Hund's rules
set of three rules proposed by physicist Friedrich Hund
Cahn–Ingold–Prelog priority rules
rules for ordering substituents when assigning descriptors to identify stereoisomers in organic chemistry nomeclature
Woodward–Hoffmann rules
set of rules used to rationalize or predict certain aspects of the stereochemistry and activation energy of pericyclic reactions
Hume-Rothery rules
Rules for elements dissolving in a solid metal
Baldwin's rules
guidelines outlining the relative favorabilities of ring closure reactions in alicyclic compounds
Bredt's rule
Empirical observation that states that a double bond cannot be placed at the bridgehead of a bridged ring system
Fajans' rules
set of rules regarding the nature of chemical bonds
Kasha's rule
law of photochemistry
Woodward's rules
rules to predict the maximum absorption wavelength of a compound in UV-Vis spectra
Pauling's rules
rules to predict ionic compounds' crystal structures
Abegg's rule
Laporte rule
spectroscopic selection rule
Bent's rule
rule in geometry of individual molecules
OddoHarkins rule
Relative abundance of chemical elements
Vegard's law
empirical rule resembling the rule of mixtures
Baird's rule
Rule in organic chemistry
Haber's rule
toxicology relationship between the concentration of a poisonous gas and duration breathed