circulationg airciscis addition reactioncitric acidcitric acid cycleclclaisen ester condensationclaisen flaskclaisen rearrangementclampclamp holderclapeyron clausius equationclarificantclarificationclarifyclassclathrateclathrate compoundsclausius clapeyron equationclausius inequalityclausius virial theoremclaycleavagecleavage reactionclemmensen reductionclose packed cubicclose packed hexagonalclose packed structureclosed systemcloud chambercluster compoundcmcocoacervatecoagulationcoal tarcoalescencecoated cathodecobaltcocatalystcochinealcoconut fatty acidcoconut oilcodimercoductivity cellcoefficientcoefficient of absorptioncoefficient of elasticitycoefficient of kinematic viscositycoefficient of reflection