What does Le chatellers principle say about upsetting a system at equilibrium?

Le Chatelier's principle states that if a system at equilibrium is disturbed by a change in concentration, temperature, or pressure, the system will shift in a direction that counteracts the disturbance to restore a new equilibrium. For example, if the concentration of a reactant is increased, the system will favor the forward reaction to consume the added reactant. Similarly, if the temperature is increased in an exothermic reaction, the system will shift to favor the endothermic direction to absorb the excess heat. This principle helps predict how a chemical system will respond to changes in conditions.