I assume what they are asking you? Sorry if that sound mean
Answer:
A strong acid
Any strong acid (such as HCl, HBr, or ) will completely dissociate forming a very weak conjugate base and H3O which will be acidic.
Answer:
They mostly dissolve in water, and they are poor conductors of heat.
When the pressure is increased, the equilibrium will shift to the left to offset the pressure increase. Equilibrium shifting to the left side is favored because the left side has fewer moles of gas than the number of moles of gas on the right-hand side and because it exerts less pressure. Therefore, the answer is there will be a shift toward the reactants.
A) It becomes a negative ion