Calculate the pH of a solution of 5.55 x 10-4M HBr

What kind of ion is contained in salts that produce an acidic solution? a positive ion that attracts a proton from water a positive ion that releases a proton to water a negative ion that attracts a proton from water a negative ion that releases a proton to water

If a reactant was removed, did the new equilibrium system shift to make more reactants or more products?

When the speed of the bottle is 2 m/s, the average maximum height of the beanbag is m.