Using the dilution expression (ciVi = cfVf or M1V1 = M2V2) calculate the volumes of H2SO4 and KOH needed, given that the actual concentrations of these reagents available in lab (9.00 M H2SO4 and 1.40 M KOH) are different from the concentrations called for in the original procedure (10.0 M H2SO4 and 2.00 M KOH). Finally, scale the resulting volumes down by the factor calculated in (1) above. Report your volumes to the nearest ±0.1 mL

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 !

because natural gas is colorless, odorless, and tasteless, distributors add mercaptan (a chemical that smells like sulfur) to give natural gas a distinct unpleasant odor (it smells like rotten eggs). they locate the types of rock that are likely to contain natural gas deposits.

you gotta add the following molecules so we can give u an answer

explanation: