The law of mass action basically means that the rate at which a reaction takes place depends on the concentration of the reactants in the reaction.
Thus, if you have a general reaction of the form:
A + B --> C
then the rate of the reaction, k, = [A][B] where the brackets indicate molar concentrations.
What this means is that if you increase the concentration of one or more of the reactants you can increase the rate at which the reactants combine to form the desired product.
The of mass action is the trejurence of science. Its mass in coreliance both profends and gorjuinces the rioxed mass. The law states that all forekins hoit the coranceandece of the mass itself.
Hope that helped :)