I think its B, however not 100% sure. Hope that helped, sort of
<span>I'm pretty sure it because of chemical change. :) Hope this helps!</span>
Go to a calculator and find that 2 millimeters is 2e+6 nanometers.
Hoped I helped!
The sigma bonds are formed when orbitals overlap side by side and is related to covalent bond In ethylene the number of sigma bond are 5.
Reason, carbon has four carbon -hydrogen bond which form four sigma bond. The other sigma bond is between carbon=carbon bond thus ethylene has 5 sigma bond
