Answer
An analogy of chemical equilibrium:
A busy restaurant during a lunch rush can only seat a certain number of guests, but when patrons leave, room is created for new guests to come in. The number of people entering and leaving the restaurant would be roughly equal, so this can be a representation of chemical equilibrium.
Work Step by Step
Chemical equilibrium occurs when the forward and reverse rates of reactions are equivalent. This does not mean that both sides have the same amount of matter, nor does it mean that either reaction has halted.
