Question

What is chemical equilibrium?
(A) A state of balance in a reaction where the forward and reverse reaction speed is equal and the concentrations of the products and reactants remain unchanged.
(B) Equilibrium involving chemicals.
(C) A state of balance in a reaction where the forward and reverse reaction speed is unequal.
(D) Equilibrium between two substances that does not involve a change in the chemical makeup of a substance.
(E) A state where the reaction is unbalanced.

Answer 1

Hint: Chemical equilibrium is the condition of a chemical reaction in which all the reactants and products are present in quantities that have no further propensity to change over time, resulting in no detectable change in the system's properties. When the forward reaction and the reverse reaction each proceed at the same time, this condition occurs. The forward and backward reaction rates are usually not negligible, but they are roughly equivalent. As a result, there are no net improvements in the reactant and chemical concentrations. Dynamic equilibrium is the term for such a condition.

Complete answer:
Chemical equilibrium is the state of a system in which the concentration of the reactant and the concentration of the compounds do not change with time and the system's properties do not change. The method achieves chemical equilibrium when the rate of the forward reaction is equal to the rate of the reverse reaction. The mechanism is said to be in a state of dynamic equilibrium when the quantities of the reactants and products do not shift due to equivalent rates of forward and reverse reactions. Chemical equilibrium is reached when neither the reactants' nor the products' concentrations change.
An equilibrium stage is defined as the point where the rate of forward reaction equals the rate of backward reaction. The number of reactant molecules converted to products and product molecules converting to reactants is the same at this stage. Chemical equilibrium is dynamic and the same equilibrium can be achieved with the same reactants under identical situations everywhere with continuous molecule exchange.

Note:
If some of the variables influencing the equilibrium conditions change, the mechanism will reverse or minimise the influence of the overall transition, according to Le-theorem. Chatelier's Both chemical and physical equilibrium are governed by this theory.