Drawing Hydrogens in Conformations

[Kayla Tran 1E]

When we are asked to draw a conformation for cyclohexane, do we always need to include all of the hydrogens? For example in question 8B on the 2012 Final we are asked to draw a ring flip and it has all of the hydrogens drawn in but isn't it implied that they are there? We already have to draw in Bromine and Chlorine as substituents so if the point is to show that the bonds go from equatorial to axial and vice versa, you are already showing that.

[Hailey Donaldson 1E]

Generally, you don't need to draw every hydrogen. I was talking to a TA, and she said that it was best if you had the larger substituent in an equatorial up position, for example, to also draw the corresponding hydrogen in the axial down position, just to show that you understand the conformation. Hope this helps!