Which statement compares the relative strength of the electric forces that hold particles together A. The force between two nonpolar molecules are stronger than the force between positive ions and freely moving electrons

B. The force between two polar molecules are stronger than the force between positive ions and freely moving electrons

C. The force between positive and negative ions is weaker than the force between two polar molecules

D. The force between two nonpolar molecules is weaker than the force between positive ions and freely moving electrons

A.the force between two non polar molecules are stronger than the force between positive ions and freely moving electrons

2fe + 3h2so4 -> fe2(so4)3 + 3h2

it is necessary to balance equations in order to get the proper amount of reactants as well as products in order not to make a miscalculation.

you cannot change the subscripts as that would change the substance itself. for instance, diatomic elements such as h2 only have the subscript two when a gas. another example would be so4, if you were to change the subscript, the element would no longer be sulfate.

we change the coefficients instead as that only changes the number of molecules rather than the substance itself.

hope this !