Aaliya knows that sliced apples turn brown when left out in the open air. she also knows that pouring certain liquids on then will keep this from happening. aaliya thinks that water, ginger ale, or lemon juice may do the trick. how could aaliya set up an experiment to find out which one will work. what are the variables? what will she use as a control?

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.)

Ted and emily played a mixed doubles tennis match against jack and brenda. in the second match. ted and brenda played against jack and emily. which type of chemical reaction does the situation demonstrate?