Question

According to Le Chatelier’s principle, what happens when the concentration of reactants is doubled in a chemical reaction that was in equilibrium?

a. The equilibrium shifts to the right to favor the formation of products.
b. The equilibrium shifts to the left to favor the formation of reactants.
c. The equilibrium is unaffected by the increase in concentration.
d. The equilibrium is lost because the concentrations have been disturbed.

Answer 1

im pretty sure the answer is a 

Answer 2

According to Le Chatelier’s principle, if the dynamic equilibrium of a system is disturbed by any change in the conditions of the system then the equilibrium will adjust itself in such a way that new equilibrium moves to counteract the change.

Hence, when the concentration of reactants is doubled in a chemical reaction that was in equilibrium then the equilibrium shifts to the right to favor the formation of products.