How to tell which chair conformation is more stable?

If a reactant was removed, did the new equilibrium system shift to make more reactants or more products?

Which statement is usually true about the relationship between activation energy and reaction rates? low activation energy barriers result in low rates. high activation energy barriers result in low rates. low activation energy barriers result in no reaction. high activation energy barriers result in no reaction.

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5