Respuesta :
Answer:
C. The concentrations of products and reactants are equal.
Explanation:
A reaction has reached equilibrium when the concentrations of products and reactants are equal.
One can tell if a reaction has reached equilibrium, when the concentrations of products and reactants are equal.
What is the equilibrium state?
The equilibrium state is the one where there is no further change occurs in the concentration of the product and the reactant.
There is no observable change in the properties of the system.
Thus, the correct option is C.
Learn more about equilibrium state
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