Arrange these molecules in order of decreasing mass: C6H14 , NO2 , Fe2O3 , and CaCO

The decreasing order of the mass of the molecules are:

Fe2O3>C6H14>CaCO>NO2

Explanation:

Let us calculate the atomic mass of the molecules given:

C6H14                                     Atomic mass of 1 carbon atom =12.01 amu

so, 6*12+1*14                                           Atomic mass of  hydrogen=1.007

= 86 g/mol

Atomic mass of NO2

  = 14+ (2*15.9)

   = 14+ 31.8

     = 45.8 g/mol

Atomic mass of Fe203

( 2*55.845)+ (3*15.9)

= 159.69 g/mol

Atomic mass of CaCO

40.07+12.0107+15.99

= 68.07g/mol

The decreasing order of the mass of the molecules are:

Fe2O3>C6H14>CaCO>NO2

is it a purebred? it looks more like a red nose, but it doesn't have the red could it be a staffordshire bull terrior? unsure if that's the right name for it sorry

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be