Which of the following pairs does not share the same empirical formula? c2h6 and c4h12 c3h6o3 and c2h4o2 c2h6 and ch4 ch2o and c3h6o3

and

Explanation:

Molecular formula is the chemical formula which depicts the actual number of atoms of each element present in the compound.  

Empirical formula is the simplest chemical formula which depicts the whole number of atoms of each element present in the compound.

and both have empirical formulas of

and both have empirical formulas of  

and  have empirical formulas and respectively.

and both have empirical formulas of  

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.

the ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (uvr) from the sun, protecting life on earth from its potentially harmful effects. when the sky is clear, there is an inverse relationship between stratospheric ozone and solar uvr measured at the earth's surface.