Draw all possible structure(s) and give the iupac systematic name(s) of an alkane or cycloalkane with the formula c6h12 that has only secondary hydrogen atoms. get answering molecular drawing questions get answering molecular drawing questions. draw the structure(s). marvinjs response imageedit select the iupac systematic name(s) (all drawn in previous step): hexene 3-methylpentane cyclohexane 1,2-dimethylcyclobutane 2-methylpentane ethylcyclobutane methylcyclopentane 1,1-dimethylcyclobutane

c is the answer because when something is left after something evaporates that shows the chemical change.

number of molecules / avogadro's number * molecule molecular = mass

explanation:

we define a gram-molecular weight as the mass of one mole of any element or compound. a mole contains avogadro's number of units (molecules) –  

6.022

x

10

23

. so, dividing the number of molecules by avogadro's number gives us the number of moles. multiplying that by the molecular weight gives us the mass. from the periodic table we find the gram-molecular weight of u to be238 and of f to be19. so,  

u

f

6

will have a gram-molecular weight of 352g.