What is true when a reaction has reached equilibrium

Answer : When a reaction has reached equilibrium then the rates of the forward and reverse reactions are equal.

Explanation :

Equilibrium reaction : It is a reaction which do not go on completion that means the reactant forms product and the products goes back to the reactants simultaneously.

In a chemical equilibrium reaction, the equilibrium state is achieved when the rate of forward reaction becomes equals to the rate of the backward reaction.

Equilibrium state is the state when the reactants and products are present but the concentrations does not change with time that means there is no changes in the concentration the products and reactants.

Hence, when a reaction has reached equilibrium then the rates of the forward and reverse reactions are equal.

the formula would be mgso4

mgso[subscript]4

a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.