Given what you know about acids and bases, which of the following descriptions is the most accurate?

a. we can tell a substance is acidic if it had a high ph
b. a basic substance has a low ph
c. acid generally taste bitter and turn litmus paper blue
d. bases taste bitter and turn litmus paper blue

Sorry i dont understand the question can you rephase it?

Your answer is a just took the test

Answer is: the equilibrium  shifts toward the reactants, to the left side of chemical reaction.it is because lead(ii) nitrate dissociates in water: pb(no₃)₂ → pb²⁺(aq) + 2no₃⁻(aq).according to lechatelier's principle, the position of equilibrium moves to counteract thechange (more lead cations, common ion), the position of equilibrium will move so that the concentration ofproducts decrease and concentration of reactants of chemical reaction increase.read more on -