Options:
A.
B.
C.
D.
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Earlier discussion
2 older comments kept for context.
Oluwaseun Adeyemi
When reversible reactions reach equilibrium the forward and reverse reactions are still happening but at the same rate, so the concentrations of reactants and products do not change. The balance point can be affected by temperature, and also by pressure for gasses in equilibrium.
BOLAJI
in a reversible reaction ,equilibrium is said to be attained when the forward and backward reactions proceed at the same rate.so that implies that option D is the correct answer and not option C.