There is no overall change in reactants and products whenever a chemical reaction reaches equilibrium. It is a fundamental point in a reaction.
<h3>Chemical reactions</h3>
A chemical reaction is a process where one or more reactants interact with an enzyme to generate one or more products.
The equilibrium refers to the state where reactants and products are found in the same concentrations.
During the equilibrium, there is no change in the properties of the reaction and the amounts of substances involved remain the same.
Learn more about chemical reactions:
brainly.com/question/6876669
<span>What is the maximum number of electrons in the following energy level? n = 2
2
</span>
Answer : The enthalpy of the given reaction will be, -1048.6 kJ
Explanation :
According to Hess’s law of constant heat summation, the heat absorbed or evolved in a given chemical equation is the same whether the process occurs in one step or several steps.
The main reaction is:

The intermediate balanced chemical reactions are:
(1)

(2)

(3)

(4)

(5)

Now reversing reaction 2, multiplying reaction 3 by 4, reversing reaction 1 and multiplying by 2, reversing reaction 5 and multiplying by 2 and then adding all the equations, we get :
(1)

(2)

(3)

(4)

(5)

The expression for enthalpy of main reaction will be:



Therefore, the enthalpy of the given reaction will be, -1048.6 kJ
Answer:
A
Explanation:
it has an arrow symbolizing direction because a vector quantity has both magnitude and direction.