Final answer:
If an isolated CBC sample were heated for a long period of time, it is likely that CBL (cannabicyclol) would be the resulting cannabinoid detected due to thermal degradation.
Step-by-step explanation:
When an isolated CBC (cannabichromene) sample is heated for a long period, the cannabinoid likely to be detected as a result of thermal degradation would be CBL (cannabicyclol). CBC can undergo thermal degradation into CBL upon prolonged exposure to heat. This process involves the breakdown of the CBC molecule into smaller or different compounds due to the high temperatures. No substantial evidence supports the conversion of CBC to other cannabinoids listed as options, such as CBG (cannabigerol), Δ9-THC (delta-9-tetrahydrocannabinol), CBCVA (cannabichromevarin acid), CBCA (cannabichromenic acid), CBCV (cannabichromene varin), CBV (cannabivarin), Δ8-THC (delta-8-tetrahydrocannabinol), or CBD (cannabidiol). In understanding this transformation, it is important to have a grasp of cannabis chemistry and the effects of heat on cannabinoid stability.