Need chem with apex learning. what direction do you predict the addition of a base to the solution containing bromophenol blue will drive the equilibrium? explain your prediction in terms of le châtelier's principle.

Which statement about hf is true? it is zero for any compound in its standard state. it is positive when the bonds of the product store more energy than those of the reactants. it is negative when a compound forms from elements in their standard states. it is zero for any element that is in the liquid state.