These spectra are from the set of seven compounds from the pre-lab for this experiment: acetanilide, acetic anhydride, acetone, benzoic acid, caffeine, ethyl-4-aminobenzoate, and ethyl acetate. for each spectrum list the wavenumber of any carbonyl (c=o) stretch present and identify the molecule. give a brief (one sentence) explanation for your choice. one compound will not be used.

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 !

gasoline is a mixture. it contains several different kinds of compounds that can be present in a variety of ratios.