Chain pib yog cov txheej txheem ntawm kev pib tsim cov saw hlau hauv cov tshuaj tiv thaiv saw. Cov txheej txheem ntawm cov saw hlau feem ntau yog cov txheej txheem uas ruaj khov molecule hauv cov tshuaj tiv thaiv tau txais lub zog siab txaus los ua rau qee yam tshuaj lom neeg ua rau tawg los tsim cov dawb radicals lossis dawb atoms.
