Cracking is the process whereby heavy molecules of petroleum or crude oil are broken down into hydrocarbons of lower molecular weight (especially in the oil-refining process).
Generalic, Eni. "Cracking." Croatian-English Chemistry Dictionary & Glossary. 29 June 2022. KTF-Split. 23 Apr. 2025. <https://glossary.periodni.com>.
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Periodic Table