Consider the equation and check all statements that apply to it: HA ↔ H+ + A− (Select Apply Question)

A. It represents a strong acid buffer system.

B. It represents a weak acid buffer system.

C. Adding a strong acid would shift the equilibrium to the left

D. Adding a strong acid would shift the equilibrium to the right

Each of the following reactions is allowed to come to equilibrium and then the volume is changed as indicated. predict the effect (shift right, shift left, or no effect) of the indicated volume change. drag the appropriate items to their respective bins.co(g) + h2o(g) < => co2(g) + h2(g) (volume is decreased) pcl3(g) + cl2(g) < => pcl5(g) (volume is increased) caco3(s)< => cao(s) + co2(g) (volume is increased)