Question

C CO CO2 Ca(HCO3)2 CaCO3 CaO CaCL2 CA

Answer 1

1)Карбонат кальция -> оксид кальция -> карбид кальция

CaCO3 --t--> CaO + CO2
CaO + 3 C --t--> CaC2 + CO

2)ацетилен -> бензол -> нитробензол -> анилин

3 C2H2 --> C6H6
C6H6 + HNO3 --[H2SO4 конц.]--> C6H5-NO2 + H2O
C6H5-NO2 + 6 [H] --> C6H5-NH2 + 2 H2O

С2H2+2H2=C2H6
2C2H6+7O2=4CO2+6H2O
2C6H6+15O2=12CO2+6H2O
C2H2-ацетилен
C2H6-этан
C6H6-бензол

Answer 2

It seems like you've listed a series of chemical compounds and elements. Is there something specific you would like to know or discuss about these chemicals? Please provide more details or ask a specific question, and I'll be happy to help.