Answer: The coefficient of [tex]H_2O[/tex] in the balanced chemical equation is 4.
Explanation:
Every balanced chemical equation follows Law of conservation of mass.
This law states that mass can neither be created nor be destroyed, but it can only be transformed from one form to another form. This also means that the total number of individual atoms on the reactant side will be equal to the total number of individual atoms on the product side.
For the given balanced chemical equation:
[tex]Fe_3O_4+4H_2\rightarrow 3Fe+4H_2O[/tex]
The coefficient of [tex]H_2O[/tex] in the balanced chemical equation is 4.
