If the mass is 18.83 and the density is 0.922, what's the volume?

 If  the  mass  is 18.83  and the density  is 0.922 the volume is

  =  20.42

  calculation

          Density= mass/volume

                volume = mass /density

43.452

step-by-step explanation:

284 times .153 = 43.452

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 !