What is the final chemical equation from the following intermediate chemical equations?

the answer to that question is a

Answer : The correct option is, (1)

Explanation :

The two intermediate chemical equations are :

    ..............(1)

   .............(2)

Now adding equation (1) and equation (2), we get

Now we will cancel the from both the sides of the equation, we get

Now we will subtracting from the , we get

This is the final chemical equation.

i would say b

explanation:

but i think i would need more information than that

the enthalpy of formation of water is given as -285.8kj/mol, which states that the enthalpy of formation is negative.

negative enthalpy of formation indicates that the heat is released during the reaction process. the heat is released from reaction to the surroundings the enthalpy is expressed with a negative sign with the energy given out in the reaction process.

the formation of water takes place by giving out heat which is -285.8 kj/mol.