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GCSE Design and Technology · key term
The breaking of large hydrocarbon molecules into smaller molecules, including some used to make polymers.
Used by AQA
Paper 1
Revise: Primary material sourcesCracking breaks some large hydrocarbon molecules into smaller ones. Some of these smaller molecules can act as monomers, the building blocks of polymers. During polymerisation, many monomers join chemically to form long molecular chains.
Distinguish fractional distillation, cracking and polymerisation: they separate, break down and join molecules respectively.
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