Zoom in 1 An astronaut who specializes in chemistry
discovers a strange chemical compound our
and she is unsure of what it is! She does a few
experiments and finds that the chemical compound
has the following percent composition:
Mg: 10.89%
CI: 31.77%
0 57.34%
Follow the steps below to figure out the empirical
formula
a Using a hypothetical sample of 100 grams, write
the mass of each element in a sample of 100
grams
11 Write the empirical formula.
01
Do not worry about adding
subscripts.
For example, H. O will be H20.

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 !

c (diamond),

sio2 (quartz)

just did the assignment and the answer was #1 +2 n