¿Cuántos moles hay en 101,64 g de (NH4)²SO⁴?

Scientist wants to react a barium chloride salt with an acid. to speed up the reaction, the scientist crushes the barium chloride salt until it is a fine powder. this speeds up the reaction by a. increasing the ph of the salt. b. increasing the surface area of the salt. c. increasing the pressure of the salt. d. increasing the temperature of the salt. im thinking more a not 100% sure

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

The plant food contains nh4)3po4 what tests would you run to verify the presence of the nh4 ion and the po4 ion