Question

A student adds hydrobromic acid (HBr) to a solution of sodium bromide at equilibrium. How does this change affect the system?

Answer 1

The addition of bromine would cause the equilibrium to shift towards the reactant's side.

Equilibrium

When a reaction is in equilibrium and one of the constraints that affect the rate of reactions is applied, the equilibrium shifts so as to annul the effects of the introduced constraints.

Thus, for the reaction

NaBr(s) ⇌ Na+(aq) + Br−(aq)

The addition of HBr would introduce more Br- into the reaction. Consequently, the equilibrium will shift to produce more NaBr so as to annul the effects of the addition of Br-

More on equilibrium can be found here:  brainly.com/question/4289021