Select all the true statements regarding chemical equilibrium:
1. The concentrations of reactants and products remain constant.
2. The concentrations of reactants and products are equal.
3. Reactants are still being converted to products (and vice versa).
4. The rates of the forward and reverse reactions are equal.
Concepts and reason
In a chemical reaction, the chemical equilibrium is a state of system in which the concentration of reactants and products does not change with time.
At equilibrium, the reaction seems to be stopped due to the simultaneous rate change in the concentration of reactants and products.
Equilibrium attains a dynamic situation indicating that: the rate of forward reaction is equal to the rate of backward reaction and there is no net change in concentration.
Fundamentals
The expression for the equilibrium is given as follows:
For any arbitrary reaction at equilibrium,
The double half arrows 
in the above reaction indicates that there is simultaneous change in both directions of the reaction.
Le Chatliers principle:
If a system at equilibrium is disturbed, the equilibrium moves in such a way to counteract the change.
Factors affecting chemical equilibrium:
oConcentration
oTemperature
oPressure ( or volume)
Answer:
he concentrations of reactants and products are equal.
At equilibrium, the concentration of reactants and products will be in a specific ratio. The concentration of products and reactants can be different.
True statements regarding chemical equilibrium:
The concentrations of reactants and products remain constant.
The concentrations of reactants and products remain constant.
Equilibrium is established when there is no change in the concentration of reactants and products.
The true statements regarding chemical equilibrium are given below:
oReactants are still being converted to products (and vice versa).
The true statements regarding chemical equilibrium are given below:
oReactants are still being converted to products (and vice versa).
in a reaction at equilibrium, the reactants convert to products and simultaneously products convert to reactants.