HELP PLEASE!! Calculate the mass in grams of an object whose volume is 67.8 mL and whose density is 7.25 g/mL

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

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)

What will most likely happen when two bromine atoms bond together?