Except for the bolt, note the difference between the calculated volumes and the volume found by the displacement method. Which method is more accurate? Why?

See explanation

Explanation:

The most accurate method of determining the volume of an object, is the water displacement method. It has the peculiar advantage of working well with irregular solids.

There are often errors that prevent exact measurements of the volume of objects. This makes the water displacement method a preferred and easier method of determining the volume of an object.

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 !