This is the series of reactions that shows the conversion of CaCO3 (calcium carbonate) to C6H12O6 (glucose) via various intermediate compounds:

CaCO3 (calcium carbonate) - (heat) -> CaO (calcium oxide) + CO2CaO (calcium oxide) + C (carbon) - (electric arc) -> CaC2 (calcium carbide)CaC2 (calcium carbide) + H2O (water) - (electric arc) -> C2H2 (acetylene)C2H2 (acetylene) + 2H2O (water) - (catalyst) -> CH3CHO (acetaldehyde)CH3CHO (acetaldehyde) + H2 - (catalyst) -> CH3CH2OH (ethanol)CH3CH2OH (ethanol) - (fermentation) -> C6H12O6 (glucose)

This series of reactions outlines the transformation of calcium carbonate into glucose through a series of chemical reactions involving various intermediate compounds.