"The chair conformation of cyclohexane leads to many consequences. … the chemical behavior of many substituted cyclohexanes is influenced by their conformation. … Another consequence of the chair conformation is that there are two kinds of positions for substituents on the cyclohexane ring: axial positions and equatorial positions … each carbon atom in chair cyclohexane has one axial and one equatorial hydrogen. Furthermore, each face of the ring has three axial and three equatorial hydrogens in an alternating arrangement."