HI > HF > HBr
H2SO4>H2SO3>HSO4−\mathrm{H}_{2} \mathrm{SO}_{4}>\mathrm{H}_{2} \mathrm{SO}_{3}>\mathrm{HSO}_{4}^{-}H2SO4>H2SO3>HSO4−
HNO3>HCN>HNO2\mathrm{HNO}_{3}>\mathrm{HCN}>\mathrm{HNO}_{2}HNO3>HCN>HNO2
HClO4>HCl>HCOOH\mathrm{HClO}_{4}>\mathrm{HCl}>\mathrm{HCOOH}HClO4>HCl>HCOOH