divide into components or constituents

the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions

(chemistry) separation of a substance into two or more substances that may differ from each other and from the original substance

soften or disintegrate by means of chemical action, heat, or moisture

to undergo a reversible or temporary breakdown of a molecule into simpler molecules or atoms

reduce (petroleum) to a simpler compound by cracking

the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions