Ethane is a substance that is used when making plastic. a molecule of ethane is made of two carbon atoms and six hydrogen atoms. the carbon atoms are joined by the chemical bond. each of the hydrogen atoms is joined to one of the carbon atoms by a chemical bond. which is an accurate model of ethane? Help ASAP!!!

C

Explanation:

Option C is an accurate model of ethane.

Ethane is an alkane that has two carbon atoms bonded together and each atom has three hydrogen atoms that are attached to them. Ethane has single bonds and that makes it an alkane.

This model of ethane has six carbon-hydrogen bonds shown with solid lines that are protruding out. Rotation that takes place about the carbon-carbon bond actually results in the different molecular conformations of ethane.

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.