Working on a practice gizmo and confused by a few questions, theyre all related but different parts. Gizmo is about the waters acidity levels and the ways to minimize erosion in regards to shells. Some questions say what should be covered (etc. cause, equilibrium, reasoning, prediction) .

If you could answer all as they are part of the sane question that would be great! thank you very much!

The Problem What was causing the mussel shells to erode? Equilibrium Why did pCO2 decrease in the tank with added CO32-? Type your answer here Reasoning How did [CO32-1 decrease while DIC increased? Type your answer here Predicting Some calcifiers can use bicarbonate (HCO3-) to make their shells. How will they be affected by the decrease in pH? Type your answer here