The correct option is A.
A chemical reaction is said to have reached an equilibrium stage if the rate of reaction of the forward reaction is equal to the rate of reaction of the reverse reaction. Two way arrows are usually used to depict equilibrium reactions. These arrows indicate that the chemical reaction can move both ways. At the equilibrium point the concentrations of both the reactants and the products are equal.
The answer to this is solved through stochiometry: the answer is this: 0.0833mol
120 x 1.05 = 126 gazelles next year.
If you times it by 105% then you get the answer of adding 5% on.
