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stoichiometry

The principle that chemical reactions occur by individual molecules, atoms or ions reacting with others to produce new ones. Thus relative quantities of chemical substrates & products canbe reduced to integer quantities of each chemical, when expressed in molecule/atom/ion or molar amounts. i.e. 2 H+ + SO4= -> H2SO4 (1 SO4= & 1 H2SO4 is implied)

References

  1. Stedman's Medical Dictionary 27th ed, Williams & Wilkins, Baltimore, 1999.