Cyclohexane contains ________ C-C bonds and ________ C-H bonds, so total ________ covalent bonds.

Cyclohexane, with the molecular formula C6H12, has 6 carbon-carbon (C-C) bonds and 12 carbon-hydrogen (C-H) bonds, resulting in a total of 18 covalent bonds. Each of the six carbon atoms is bonded to two neighbouring carbon atoms (forming 6 C-C bonds) and two hydrogen atoms (forming 12 C-H bonds), giving a total of 18 covalent bonds in the molecule.