Pickles are made by soaking cucumbers in a mixture of table salt (sodium chloride), water, and spices. If you
place a cathode and anode at either end of the pickle, it
will light up. Why does this happen, and why won' the
experiment work if you plug in a plain cucumber instead?

How does the value of the equilibrium constant show that a reaction reaches equilibrium very quickly? (a) the equilibrium constant is large. (b) the equilibrium constant is small. (c) the equilibrium constant is zero. (d) the value of the equilibrium constant does not show how quickly a reaction comes to equilibrium.