Reduce the following molecular formulas to empirical formulas. !

This is done by reducing each number by a common factor for each formula.

C3H6O6- all can be divided by 3 -> CH3O3 (you don't have to put a 1 for C, only if your teacher requests it. It is generally understood if not written)

H2O2- all can be divided by 2 -> H1O1 (had to put the 1's bc of the unintended language) 

C8H8S2- all can be divided by 2 -> C4H4S 

P5O15- all can be divided by 5- PO3

it is important to note that all numbers in the molecular formula are divided by the same thing to reduce them. decimals are never used in empirical formulas, only whole numbers.

Yes she is correct. the answer is completely correct